21470760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 76190400

約数和(自身を除く): 54719640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 43, 45, 57, 60, 72, 73, 76, 86, 90, 95, 114, 120, 129, 146, 152, 171, 172, 180, 190, 215, 219, 228, 258, 285, 292, 342, 344, 360, 365, 380, 387, 430, 438, 456, 516, 570, 584, 645, 657, 684, 730, 760, 774, 817, 855, 860, 876, 1032, 1095, 1140, 1290, 1314, 1368, 1387, 1460, 1548, 1634, 1710, 1720, 1752, 1935, 2190, 2280, 2451, 2580, 2628, 2774, 2920, 3096, 3139, 3268, 3285, 3420, 3870, 4085, 4161, 4380, 4902, 5160, 5256, 5548, 6278, 6536, 6570, 6840, 6935, 7353, 7740, 8170, 8322, 8760, 9417, 9804, 11096, 12255, 12483, 12556, 13140, 13870, 14706, 15480, 15695, 16340, 16644, 18834, 19608, 20805, 24510, 24966, 25112, 26280, 27740, 28251, 29412, 31390, 32680, 33288, 36765, 37668, 41610, 47085, 49020, 49932, 55480, 56502, 58824, 59641, 62415, 62780, 73530, 75336, 83220, 94170, 98040, 99864, 113004, 119282, 124830, 125560, 141255, 147060, 166440, 178923, 188340, 226008, 238564, 249660, 282510, 294120, 298205, 357846, 376680, 477128, 499320, 536769, 565020, 596410, 715692, 894615, 1073538, 1130040, 1192820, 1431384, 1789230, 2147076, 2385640, 2683845, 3578460, 4294152, 5367690, 7156920, 10735380, 21470760]

約数ペア:

[(1, 21470760), (2, 10735380), (3, 7156920), (4, 5367690), (5, 4294152), (6, 3578460), (8, 2683845), (9, 2385640), (10, 2147076), (12, 1789230), (15, 1431384), (18, 1192820), (19, 1130040), (20, 1073538), (24, 894615), (30, 715692), (36, 596410), (38, 565020), (40, 536769), (43, 499320), (45, 477128), (57, 376680), (60, 357846), (72, 298205), (73, 294120), (76, 282510), (86, 249660), (90, 238564), (95, 226008), (114, 188340), (120, 178923), (129, 166440), (146, 147060), (152, 141255), (171, 125560), (172, 124830), (180, 119282), (190, 113004), (215, 99864), (219, 98040), (228, 94170), (258, 83220), (285, 75336), (292, 73530), (342, 62780), (344, 62415), (360, 59641), (365, 58824), (380, 56502), (387, 55480), (430, 49932), (438, 49020), (456, 47085), (516, 41610), (570, 37668), (584, 36765), (645, 33288), (657, 32680), (684, 31390), (730, 29412), (760, 28251), (774, 27740), (817, 26280), (855, 25112), (860, 24966), (876, 24510), (1032, 20805), (1095, 19608), (1140, 18834), (1290, 16644), (1314, 16340), (1368, 15695), (1387, 15480), (1460, 14706), (1548, 13870), (1634, 13140), (1710, 12556), (1720, 12483), (1752, 12255), (1935, 11096), (2190, 9804), (2280, 9417), (2451, 8760), (2580, 8322), (2628, 8170), (2774, 7740), (2920, 7353), (3096, 6935), (3139, 6840), (3268, 6570), (3285, 6536), (3420, 6278), (3870, 5548), (4085, 5256), (4161, 5160), (4380, 4902)]