16278521

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:704

約数の個数: 16

約数和(自身を含む): 19224960

約数和(自身を除く): 2946439

約数列:

[1, 7, 61, 67, 427, 469, 569, 3983, 4087, 28609, 34709, 38123, 242963, 266861, 2325503, 16278521]

約数ペア:

[(1, 16278521), (7, 2325503), (61, 266861), (67, 242963), (427, 38123), (469, 34709), (569, 28609), (3983, 4087)]