21798508

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 38878112

約数和(自身を除く): 17079604

約数列:

[1, 2, 4, 103, 157, 206, 314, 337, 412, 628, 674, 1348, 16171, 32342, 34711, 52909, 64684, 69422, 105818, 138844, 211636, 5449627, 10899254, 21798508]

約数ペア:

[(1, 21798508), (2, 10899254), (4, 5449627), (103, 211636), (157, 138844), (206, 105818), (314, 69422), (337, 64684), (412, 52909), (628, 34711), (674, 32342), (1348, 16171)]