20916705

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32429}}^1$

素因数の和:32480

約数の個数: 16

約数和(自身を含む): 34246080

約数和(自身を除く): 13329375

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32429, 97287, 162145, 486435, 1394447, 4183341, 6972235, 20916705]

約数ペア:

[(1, 20916705), (3, 6972235), (5, 4183341), (15, 1394447), (43, 486435), (129, 162145), (215, 97287), (645, 32429)]