18964010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8581}}^1$

素因数の和:8618

約数の個数: 32

約数和(自身を含む): 38927952

約数和(自身を除く): 19963942

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 8581, 17162, 42905, 85810, 111553, 145877, 223106, 291754, 557765, 729385, 1115530, 1458770, 1896401, 3792802, 9482005, 18964010]

約数ペア:

[(1, 18964010), (2, 9482005), (5, 3792802), (10, 1896401), (13, 1458770), (17, 1115530), (26, 729385), (34, 557765), (65, 291754), (85, 223106), (130, 145877), (170, 111553), (221, 85810), (442, 42905), (1105, 17162), (2210, 8581)]