28887313

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 36628200

約数和(自身を除く): 7740887

約数列:

[1, 7, 13, 49, 91, 101, 449, 637, 707, 1313, 3143, 4949, 5837, 9191, 22001, 40859, 45349, 64337, 286013, 317443, 589537, 2222101, 4126759, 28887313]

約数ペア:

[(1, 28887313), (7, 4126759), (13, 2222101), (49, 589537), (91, 317443), (101, 286013), (449, 64337), (637, 45349), (707, 40859), (1313, 22001), (3143, 9191), (4949, 5837)]