20437965

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3467}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 35706528

約数和(自身を除く): 15268563

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3467, 5895, 10401, 17335, 31203, 52005, 156015, 454177, 1362531, 2270885, 4087593, 6812655, 20437965]

約数ペア:

[(1, 20437965), (3, 6812655), (5, 4087593), (9, 2270885), (15, 1362531), (45, 454177), (131, 156015), (393, 52005), (655, 31203), (1179, 17335), (1965, 10401), (3467, 5895)]