21931496

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1231}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 21976984

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1231, 2227, 2462, 4454, 4924, 8908, 9848, 17816, 20927, 41854, 83708, 161261, 167416, 322522, 645044, 1290088, 2741437, 5482874, 10965748, 21931496]

約数ペア:

[(1, 21931496), (2, 10965748), (4, 5482874), (8, 2741437), (17, 1290088), (34, 645044), (68, 322522), (131, 167416), (136, 161261), (262, 83708), (524, 41854), (1048, 20927), (1231, 17816), (2227, 9848), (2462, 8908), (4454, 4924)]