21853116

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 59579520

約数和(自身を除く): 37726404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 684, 743, 774, 817, 1486, 1548, 1634, 2229, 2451, 2972, 3268, 4458, 4902, 6687, 7353, 8916, 9804, 13374, 14117, 14706, 26748, 28234, 29412, 31949, 42351, 56468, 63898, 84702, 95847, 127053, 127796, 169404, 191694, 254106, 287541, 383388, 508212, 575082, 607031, 1150164, 1214062, 1821093, 2428124, 3642186, 5463279, 7284372, 10926558, 21853116]

約数ペア:

[(1, 21853116), (2, 10926558), (3, 7284372), (4, 5463279), (6, 3642186), (9, 2428124), (12, 1821093), (18, 1214062), (19, 1150164), (36, 607031), (38, 575082), (43, 508212), (57, 383388), (76, 287541), (86, 254106), (114, 191694), (129, 169404), (171, 127796), (172, 127053), (228, 95847), (258, 84702), (342, 63898), (387, 56468), (516, 42351), (684, 31949), (743, 29412), (774, 28234), (817, 26748), (1486, 14706), (1548, 14117), (1634, 13374), (2229, 9804), (2451, 8916), (2972, 7353), (3268, 6687), (4458, 4902)]