21591756

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36196884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 89, 92, 138, 178, 207, 267, 276, 293, 356, 414, 534, 586, 801, 828, 879, 1068, 1172, 1602, 1758, 2047, 2637, 3204, 3516, 4094, 5274, 6141, 6739, 8188, 10548, 12282, 13478, 18423, 20217, 24564, 26077, 26956, 36846, 40434, 52154, 60651, 73692, 78231, 80868, 104308, 121302, 156462, 234693, 242604, 312924, 469386, 599771, 938772, 1199542, 1799313, 2399084, 3598626, 5397939, 7197252, 10795878, 21591756]

約数ペア:

[(1, 21591756), (2, 10795878), (3, 7197252), (4, 5397939), (6, 3598626), (9, 2399084), (12, 1799313), (18, 1199542), (23, 938772), (36, 599771), (46, 469386), (69, 312924), (89, 242604), (92, 234693), (138, 156462), (178, 121302), (207, 104308), (267, 80868), (276, 78231), (293, 73692), (356, 60651), (414, 52154), (534, 40434), (586, 36846), (801, 26956), (828, 26077), (879, 24564), (1068, 20217), (1172, 18423), (1602, 13478), (1758, 12282), (2047, 10548), (2637, 8188), (3204, 6739), (3516, 6141), (4094, 5274)]