21203460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117797}}^1$

素因数の和:117812

約数の個数: 36

約数和(自身を含む): 64317708

約数和(自身を除く): 43114248

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117797, 235594, 353391, 471188, 588985, 706782, 1060173, 1177970, 1413564, 1766955, 2120346, 2355940, 3533910, 4240692, 5300865, 7067820, 10601730, 21203460]

約数ペア:

[(1, 21203460), (2, 10601730), (3, 7067820), (4, 5300865), (5, 4240692), (6, 3533910), (9, 2355940), (10, 2120346), (12, 1766955), (15, 1413564), (18, 1177970), (20, 1060173), (30, 706782), (36, 588985), (45, 471188), (60, 353391), (90, 235594), (180, 117797)]