201721495

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{1993}}^1$

素因数の和:2682

約数の個数: 16

約数和(自身を含む): 250382592

約数和(自身を除く): 48661097

約数列:

[1, 5, 31, 155, 653, 1993, 3265, 9965, 20243, 61783, 101215, 308915, 1301429, 6507145, 40344299, 201721495]

約数ペア:

[(1, 201721495), (5, 40344299), (31, 6507145), (155, 1301429), (653, 308915), (1993, 101215), (3265, 61783), (9965, 20243)]