21167881270

素因数分解:

$2^1\times 5^1\times {\mathrm{38713}}^1\times {\mathrm{54679}}^1$

素因数の和:93399

約数の個数: 16

約数和(自身を含む): 38103867360

約数和(自身を除く): 16935986090

約数列:

[1, 2, 5, 10, 38713, 54679, 77426, 109358, 193565, 273395, 387130, 546790, 2116788127, 4233576254, 10583940635, 21167881270]

約数ペア:

[(1, 21167881270), (2, 10583940635), (5, 4233576254), (10, 2116788127), (38713, 546790), (54679, 387130), (77426, 273395), (109358, 193565)]