20178487721

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{1493}}^1\times {\mathrm{52183}}^1$

素因数の和:53720

約数の個数: 16

約数和(自身を含む): 23700720384

約数和(自身を除く): 3522232663

約数列:

[1, 7, 37, 259, 1493, 10451, 52183, 55241, 365281, 386687, 1930771, 13515397, 77909219, 545364533, 2882641103, 20178487721]

約数ペア:

[(1, 20178487721), (7, 2882641103), (37, 545364533), (259, 77909219), (1493, 13515397), (10451, 1930771), (52183, 386687), (55241, 365281)]