28204351

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 34186320

約数和(自身を除く): 5981969

約数列:

[1, 7, 41, 49, 101, 139, 287, 707, 973, 2009, 4141, 4949, 5699, 6811, 14039, 28987, 39893, 98273, 202909, 279251, 575599, 687911, 4029193, 28204351]

約数ペア:

[(1, 28204351), (7, 4029193), (41, 687911), (49, 575599), (101, 279251), (139, 202909), (287, 98273), (707, 39893), (973, 28987), (2009, 14039), (4141, 6811), (4949, 5699)]