20172355

素因数分解:

$5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{2539}}^1$

素因数の和:2778

約数の個数: 16

約数和(自身を含む): 27797760

約数和(自身を除く): 7625405

約数列:

[1, 5, 7, 35, 227, 1135, 1589, 2539, 7945, 12695, 17773, 88865, 576353, 2881765, 4034471, 20172355]

約数ペア:

[(1, 20172355), (5, 4034471), (7, 2881765), (35, 576353), (227, 88865), (1135, 17773), (1589, 12695), (2539, 7945)]