21167389402

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1\times {\mathrm{202679}}^1$

素因数の和:203421

約数の個数: 16

約数和(自身を含む): 32201798400

約数和(自身を除く): 11034408998

約数列:

[1, 2, 79, 158, 661, 1322, 52219, 104438, 202679, 405358, 16011641, 32023282, 133970819, 267941638, 10583694701, 21167389402]

約数ペア:

[(1, 21167389402), (2, 10583694701), (79, 267941638), (158, 133970819), (661, 32023282), (1322, 16011641), (52219, 405358), (104438, 202679)]