21297360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1811}}^1$

素因数の和:1841

約数の個数: 120

約数和(自身を含む): 76843296

約数和(自身を除く): 55545936

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1811, 1960, 2352, 2940, 3622, 3920, 5433, 5880, 7244, 9055, 10866, 11760, 12677, 14488, 18110, 21732, 25354, 27165, 28976, 36220, 38031, 43464, 50708, 54330, 63385, 72440, 76062, 86928, 88739, 101416, 108660, 126770, 144880, 152124, 177478, 190155, 202832, 217320, 253540, 266217, 304248, 354956, 380310, 434640, 443695, 507080, 532434, 608496, 709912, 760620, 887390, 1014160, 1064868, 1331085, 1419824, 1521240, 1774780, 2129736, 2662170, 3042480, 3549560, 4259472, 5324340, 7099120, 10648680, 21297360]

約数ペア:

[(1, 21297360), (2, 10648680), (3, 7099120), (4, 5324340), (5, 4259472), (6, 3549560), (7, 3042480), (8, 2662170), (10, 2129736), (12, 1774780), (14, 1521240), (15, 1419824), (16, 1331085), (20, 1064868), (21, 1014160), (24, 887390), (28, 760620), (30, 709912), (35, 608496), (40, 532434), (42, 507080), (48, 443695), (49, 434640), (56, 380310), (60, 354956), (70, 304248), (80, 266217), (84, 253540), (98, 217320), (105, 202832), (112, 190155), (120, 177478), (140, 152124), (147, 144880), (168, 126770), (196, 108660), (210, 101416), (240, 88739), (245, 86928), (280, 76062), (294, 72440), (336, 63385), (392, 54330), (420, 50708), (490, 43464), (560, 38031), (588, 36220), (735, 28976), (784, 27165), (840, 25354), (980, 21732), (1176, 18110), (1470, 14488), (1680, 12677), (1811, 11760), (1960, 10866), (2352, 9055), (2940, 7244), (3622, 5880), (3920, 5433)]