18919130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1021}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 36424080

約数和(自身を除く): 17504950

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1021, 1090, 1853, 2042, 3706, 5105, 9265, 10210, 17357, 18530, 34714, 86785, 111289, 173570, 222578, 556445, 1112890, 1891913, 3783826, 9459565, 18919130]

約数ペア:

[(1, 18919130), (2, 9459565), (5, 3783826), (10, 1891913), (17, 1112890), (34, 556445), (85, 222578), (109, 173570), (170, 111289), (218, 86785), (545, 34714), (1021, 18530), (1090, 17357), (1853, 10210), (2042, 9265), (3706, 5105)]