20171728213

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{504937}}^1$

素因数の和:505396

約数の個数: 16

約数和(自身を含む): 24883344640

約数和(自身を除く): 4711616427

約数列:

[1, 7, 13, 91, 439, 3073, 5707, 39949, 504937, 3534559, 6564181, 45949267, 221667343, 1551671401, 2881675459, 20171728213]

約数ペア:

[(1, 20171728213), (7, 2881675459), (13, 1551671401), (91, 221667343), (439, 45949267), (3073, 6564181), (5707, 3534559), (39949, 504937)]