21086580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:433

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 42417420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 53, 57, 60, 76, 95, 106, 114, 159, 190, 212, 228, 265, 285, 318, 349, 380, 530, 570, 636, 698, 795, 1007, 1047, 1060, 1140, 1396, 1590, 1745, 2014, 2094, 3021, 3180, 3490, 4028, 4188, 5035, 5235, 6042, 6631, 6980, 10070, 10470, 12084, 13262, 15105, 18497, 19893, 20140, 20940, 26524, 30210, 33155, 36994, 39786, 55491, 60420, 66310, 73988, 79572, 92485, 99465, 110982, 132620, 184970, 198930, 221964, 277455, 351443, 369940, 397860, 554910, 702886, 1054329, 1109820, 1405772, 1757215, 2108658, 3514430, 4217316, 5271645, 7028860, 10543290, 21086580]

約数ペア:

[(1, 21086580), (2, 10543290), (3, 7028860), (4, 5271645), (5, 4217316), (6, 3514430), (10, 2108658), (12, 1757215), (15, 1405772), (19, 1109820), (20, 1054329), (30, 702886), (38, 554910), (53, 397860), (57, 369940), (60, 351443), (76, 277455), (95, 221964), (106, 198930), (114, 184970), (159, 132620), (190, 110982), (212, 99465), (228, 92485), (265, 79572), (285, 73988), (318, 66310), (349, 60420), (380, 55491), (530, 39786), (570, 36994), (636, 33155), (698, 30210), (795, 26524), (1007, 20940), (1047, 20140), (1060, 19893), (1140, 18497), (1396, 15105), (1590, 13262), (1745, 12084), (2014, 10470), (2094, 10070), (3021, 6980), (3180, 6631), (3490, 6042), (4028, 5235), (4188, 5035)]