21580380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119891}}^1$

素因数の和:119906

約数の個数: 36

約数和(自身を含む): 65461032

約数和(自身を除く): 43880652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119891, 239782, 359673, 479564, 599455, 719346, 1079019, 1198910, 1438692, 1798365, 2158038, 2397820, 3596730, 4316076, 5395095, 7193460, 10790190, 21580380]

約数ペア:

[(1, 21580380), (2, 10790190), (3, 7193460), (4, 5395095), (5, 4316076), (6, 3596730), (9, 2397820), (10, 2158038), (12, 1798365), (15, 1438692), (18, 1198910), (20, 1079019), (30, 719346), (36, 599455), (45, 479564), (60, 359673), (90, 239782), (180, 119891)]