21889718

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{1151}}^1$

素因数の和:1447

約数の個数: 16

約数和(自身を含む): 33882624

約数和(自身を除く): 11992906

約数列:

[1, 2, 37, 74, 257, 514, 1151, 2302, 9509, 19018, 42587, 85174, 295807, 591614, 10944859, 21889718]

約数ペア:

[(1, 21889718), (2, 10944859), (37, 591614), (74, 295807), (257, 85174), (514, 42587), (1151, 19018), (2302, 9509)]