20843676

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 96

約数和(自身を含む): 62720000

約数和(自身を除く): 41876324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 79, 84, 108, 126, 158, 189, 237, 252, 316, 349, 378, 474, 553, 698, 711, 756, 948, 1047, 1106, 1396, 1422, 1659, 2094, 2133, 2212, 2443, 2844, 3141, 3318, 4188, 4266, 4886, 4977, 6282, 6636, 7329, 8532, 9423, 9772, 9954, 12564, 14658, 14931, 18846, 19908, 21987, 27571, 29316, 29862, 37692, 43974, 55142, 59724, 65961, 82713, 87948, 110284, 131922, 165426, 192997, 248139, 263844, 330852, 385994, 496278, 578991, 744417, 771988, 992556, 1157982, 1488834, 1736973, 2315964, 2977668, 3473946, 5210919, 6947892, 10421838, 20843676]

約数ペア:

[(1, 20843676), (2, 10421838), (3, 6947892), (4, 5210919), (6, 3473946), (7, 2977668), (9, 2315964), (12, 1736973), (14, 1488834), (18, 1157982), (21, 992556), (27, 771988), (28, 744417), (36, 578991), (42, 496278), (54, 385994), (63, 330852), (79, 263844), (84, 248139), (108, 192997), (126, 165426), (158, 131922), (189, 110284), (237, 87948), (252, 82713), (316, 65961), (349, 59724), (378, 55142), (474, 43974), (553, 37692), (698, 29862), (711, 29316), (756, 27571), (948, 21987), (1047, 19908), (1106, 18846), (1396, 14931), (1422, 14658), (1659, 12564), (2094, 9954), (2133, 9772), (2212, 9423), (2443, 8532), (2844, 7329), (3141, 6636), (3318, 6282), (4188, 4977), (4266, 4886)]