18881008

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{2803}}^1$

素因数の和:3232

約数の個数: 20

約数和(自身を含む): 36681928

約数和(自身を除く): 17800920

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 2803, 3368, 5606, 6736, 11212, 22424, 44848, 1180063, 2360126, 4720252, 9440504, 18881008]

約数ペア:

[(1, 18881008), (2, 9440504), (4, 4720252), (8, 2360126), (16, 1180063), (421, 44848), (842, 22424), (1684, 11212), (2803, 6736), (3368, 5606)]