21132464

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15913}}^1$

素因数の和:16004

約数の個数: 20

約数和(自身を含む): 41440056

約数和(自身を除く): 20307592

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15913, 31826, 63652, 127304, 254608, 1320779, 2641558, 5283116, 10566232, 21132464]

約数ペア:

[(1, 21132464), (2, 10566232), (4, 5283116), (8, 2641558), (16, 1320779), (83, 254608), (166, 127304), (332, 63652), (664, 31826), (1328, 15913)]