21657564

素因数分解:

$2^2\times 3^3\times {\mathrm{127}}^1\times {\mathrm{1579}}^1$

素因数の和:1719

約数の個数: 48

約数和(自身を含む): 56627200

約数和(自身を除く): 34969636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 127, 254, 381, 508, 762, 1143, 1524, 1579, 2286, 3158, 3429, 4572, 4737, 6316, 6858, 9474, 13716, 14211, 18948, 28422, 42633, 56844, 85266, 170532, 200533, 401066, 601599, 802132, 1203198, 1804797, 2406396, 3609594, 5414391, 7219188, 10828782, 21657564]

約数ペア:

[(1, 21657564), (2, 10828782), (3, 7219188), (4, 5414391), (6, 3609594), (9, 2406396), (12, 1804797), (18, 1203198), (27, 802132), (36, 601599), (54, 401066), (108, 200533), (127, 170532), (254, 85266), (381, 56844), (508, 42633), (762, 28422), (1143, 18948), (1524, 14211), (1579, 13716), (2286, 9474), (3158, 6858), (3429, 6316), (4572, 4737)]