20873865

素因数分解:

$3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2671}}^1$

素因数の和:3200

約数の個数: 16

約数和(自身を含む): 33474816

約数和(自身を除く): 12600951

約数列:

[1, 3, 5, 15, 521, 1563, 2605, 2671, 7815, 8013, 13355, 40065, 1391591, 4174773, 6957955, 20873865]

約数ペア:

[(1, 20873865), (3, 6957955), (5, 4174773), (15, 1391591), (521, 40065), (1563, 13355), (2605, 8013), (2671, 7815)]