21977331

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1609}}^1$

素因数の和:1798

約数の個数: 16

約数和(自身を含む): 30525600

約数和(自身を除く): 8548269

約数列:

[1, 3, 29, 87, 157, 471, 1609, 4553, 4827, 13659, 46661, 139983, 252613, 757839, 7325777, 21977331]

約数ペア:

[(1, 21977331), (3, 7325777), (29, 757839), (87, 252613), (157, 139983), (471, 46661), (1609, 13659), (4553, 4827)]