21050040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 70917120

約数和(自身を除く): 49867080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 132, 148, 165, 185, 220, 222, 264, 296, 330, 370, 407, 431, 440, 444, 555, 660, 740, 814, 862, 888, 1110, 1221, 1293, 1320, 1480, 1628, 1724, 2035, 2155, 2220, 2442, 2586, 3256, 3448, 4070, 4310, 4440, 4741, 4884, 5172, 6105, 6465, 8140, 8620, 9482, 9768, 10344, 12210, 12930, 14223, 15947, 16280, 17240, 18964, 23705, 24420, 25860, 28446, 31894, 37928, 47410, 47841, 48840, 51720, 56892, 63788, 71115, 79735, 94820, 95682, 113784, 127576, 142230, 159470, 175417, 189640, 191364, 239205, 284460, 318940, 350834, 382728, 478410, 526251, 568920, 637880, 701668, 877085, 956820, 1052502, 1403336, 1754170, 1913640, 2105004, 2631255, 3508340, 4210008, 5262510, 7016680, 10525020, 21050040]

約数ペア:

[(1, 21050040), (2, 10525020), (3, 7016680), (4, 5262510), (5, 4210008), (6, 3508340), (8, 2631255), (10, 2105004), (11, 1913640), (12, 1754170), (15, 1403336), (20, 1052502), (22, 956820), (24, 877085), (30, 701668), (33, 637880), (37, 568920), (40, 526251), (44, 478410), (55, 382728), (60, 350834), (66, 318940), (74, 284460), (88, 239205), (110, 191364), (111, 189640), (120, 175417), (132, 159470), (148, 142230), (165, 127576), (185, 113784), (220, 95682), (222, 94820), (264, 79735), (296, 71115), (330, 63788), (370, 56892), (407, 51720), (431, 48840), (440, 47841), (444, 47410), (555, 37928), (660, 31894), (740, 28446), (814, 25860), (862, 24420), (888, 23705), (1110, 18964), (1221, 17240), (1293, 16280), (1320, 15947), (1480, 14223), (1628, 12930), (1724, 12210), (2035, 10344), (2155, 9768), (2220, 9482), (2442, 8620), (2586, 8140), (3256, 6465), (3448, 6105), (4070, 5172), (4310, 4884), (4440, 4741)]