20740986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 96

約数和(自身を含む): 56878848

約数和(自身を除く): 36137862

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 23, 34, 42, 46, 51, 63, 69, 102, 119, 126, 138, 153, 161, 207, 238, 306, 322, 357, 391, 414, 421, 483, 714, 782, 842, 966, 1071, 1173, 1263, 1449, 2142, 2346, 2526, 2737, 2898, 2947, 3519, 3789, 5474, 5894, 7038, 7157, 7578, 8211, 8841, 9683, 14314, 16422, 17682, 19366, 21471, 24633, 26523, 29049, 42942, 49266, 50099, 53046, 58098, 64413, 67781, 87147, 100198, 128826, 135562, 150297, 164611, 174294, 203343, 300594, 329222, 406686, 450891, 493833, 610029, 901782, 987666, 1152277, 1220058, 1481499, 2304554, 2962998, 3456831, 6913662, 10370493, 20740986]

約数ペア:

[(1, 20740986), (2, 10370493), (3, 6913662), (6, 3456831), (7, 2962998), (9, 2304554), (14, 1481499), (17, 1220058), (18, 1152277), (21, 987666), (23, 901782), (34, 610029), (42, 493833), (46, 450891), (51, 406686), (63, 329222), (69, 300594), (102, 203343), (119, 174294), (126, 164611), (138, 150297), (153, 135562), (161, 128826), (207, 100198), (238, 87147), (306, 67781), (322, 64413), (357, 58098), (391, 53046), (414, 50099), (421, 49266), (483, 42942), (714, 29049), (782, 26523), (842, 24633), (966, 21471), (1071, 19366), (1173, 17682), (1263, 16422), (1449, 14314), (2142, 9683), (2346, 8841), (2526, 8211), (2737, 7578), (2898, 7157), (2947, 7038), (3519, 5894), (3789, 5474)]