19861810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{68489}}^1$

素因数の和:68525

約数の個数: 16

約数和(自身を含む): 36984600

約数和(自身を除く): 17122790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 68489, 136978, 342445, 684890, 1986181, 3972362, 9930905, 19861810]

約数ペア:

[(1, 19861810), (2, 9930905), (5, 3972362), (10, 1986181), (29, 684890), (58, 342445), (145, 136978), (290, 68489)]