19981695

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3257}}^1$

素因数の和:3674

約数の個数: 16

約数和(自身を含む): 32058720

約数和(自身を除く): 12077025

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3257, 6135, 9771, 16285, 48855, 1332113, 3996339, 6660565, 19981695]

約数ペア:

[(1, 19981695), (3, 6660565), (5, 3996339), (15, 1332113), (409, 48855), (1227, 16285), (2045, 9771), (3257, 6135)]