21650490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{26729}}^1$

素因数の和:26748

約数の個数: 40

約数和(自身を含む): 58217940

約数和(自身を除く): 36567450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 26729, 53458, 80187, 133645, 160374, 240561, 267290, 400935, 481122, 721683, 801870, 1202805, 1443366, 2165049, 2405610, 3608415, 4330098, 7216830, 10825245, 21650490]

約数ペア:

[(1, 21650490), (2, 10825245), (3, 7216830), (5, 4330098), (6, 3608415), (9, 2405610), (10, 2165049), (15, 1443366), (18, 1202805), (27, 801870), (30, 721683), (45, 481122), (54, 400935), (81, 267290), (90, 240561), (135, 160374), (162, 133645), (270, 80187), (405, 53458), (810, 26729)]