201721395

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{123377}}^1$

素因数の和:123494

約数の個数: 16

約数和(自身を含む): 325717920

約数和(自身を除く): 123996525

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 123377, 370131, 616885, 1850655, 13448093, 40344279, 67240465, 201721395]

約数ペア:

[(1, 201721395), (3, 67240465), (5, 40344279), (15, 13448093), (109, 1850655), (327, 616885), (545, 370131), (1635, 123377)]