21128042

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{3677}}^1$

素因数の和:3722

約数の個数: 24

約数和(自身を含む): 36345996

約数和(自身を除く): 15217954

約数列:

[1, 2, 13, 17, 26, 34, 169, 221, 338, 442, 2873, 3677, 5746, 7354, 47801, 62509, 95602, 125018, 621413, 812617, 1242826, 1625234, 10564021, 21128042]

約数ペア:

[(1, 21128042), (2, 10564021), (13, 1625234), (17, 1242826), (26, 812617), (34, 621413), (169, 125018), (221, 95602), (338, 62509), (442, 47801), (2873, 7354), (3677, 5746)]