28029911

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 35622720

約数和(自身を除く): 7592809

約数列:

[1, 7, 13, 49, 79, 91, 553, 557, 637, 1027, 3871, 3899, 7189, 7241, 27293, 44003, 50323, 50687, 308021, 354809, 572039, 2156147, 4004273, 28029911]

約数ペア:

[(1, 28029911), (7, 4004273), (13, 2156147), (49, 572039), (79, 354809), (91, 308021), (553, 50687), (557, 50323), (637, 44003), (1027, 27293), (3871, 7241), (3899, 7189)]