21745498

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{521}}^1$

素因数の和:1073

約数の個数: 16

約数和(自身を含む): 33543720

約数和(自身を除く): 11798222

約数列:

[1, 2, 41, 82, 509, 521, 1018, 1042, 20869, 21361, 41738, 42722, 265189, 530378, 10872749, 21745498]

約数ペア:

[(1, 21745498), (2, 10872749), (41, 530378), (82, 265189), (509, 42722), (521, 41738), (1018, 21361), (1042, 20869)]