20756484

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2657}}^1$

素因数の和:2705

約数の個数: 72

約数和(自身を含む): 61920768

約数和(自身を除く): 41164284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2657, 3906, 5314, 7812, 7971, 10628, 15942, 18599, 23913, 31884, 37198, 47826, 55797, 74396, 82367, 95652, 111594, 164734, 167391, 223188, 247101, 329468, 334782, 494202, 576569, 669564, 741303, 988404, 1153138, 1482606, 1729707, 2306276, 2965212, 3459414, 5189121, 6918828, 10378242, 20756484]

約数ペア:

[(1, 20756484), (2, 10378242), (3, 6918828), (4, 5189121), (6, 3459414), (7, 2965212), (9, 2306276), (12, 1729707), (14, 1482606), (18, 1153138), (21, 988404), (28, 741303), (31, 669564), (36, 576569), (42, 494202), (62, 334782), (63, 329468), (84, 247101), (93, 223188), (124, 167391), (126, 164734), (186, 111594), (217, 95652), (252, 82367), (279, 74396), (372, 55797), (434, 47826), (558, 37198), (651, 31884), (868, 23913), (1116, 18599), (1302, 15942), (1953, 10628), (2604, 7971), (2657, 7812), (3906, 5314)]