21856441

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 2715719

約数列:

[1, 17, 19, 157, 323, 431, 2669, 2983, 7327, 8189, 50711, 67667, 139213, 1150339, 1285673, 21856441]

約数ペア:

[(1, 21856441), (17, 1285673), (19, 1150339), (157, 139213), (323, 67667), (431, 50711), (2669, 8189), (2983, 7327)]