21565620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119809}}^1$

素因数の和:119824

約数の個数: 36

約数和(自身を含む): 65416260

約数和(自身を除く): 43850640

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119809, 239618, 359427, 479236, 599045, 718854, 1078281, 1198090, 1437708, 1797135, 2156562, 2396180, 3594270, 4313124, 5391405, 7188540, 10782810, 21565620]

約数ペア:

[(1, 21565620), (2, 10782810), (3, 7188540), (4, 5391405), (5, 4313124), (6, 3594270), (9, 2396180), (10, 2156562), (12, 1797135), (15, 1437708), (18, 1198090), (20, 1078281), (30, 718854), (36, 599045), (45, 479236), (60, 359427), (90, 239618), (180, 119809)]