20697345

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3511}}^1$

素因数の和:3653

約数の個数: 24

約数和(自身を含む): 36159552

約数和(自身を除く): 15462207

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3511, 5895, 10533, 17555, 31599, 52665, 157995, 459941, 1379823, 2299705, 4139469, 6899115, 20697345]

約数ペア:

[(1, 20697345), (3, 6899115), (5, 4139469), (9, 2299705), (15, 1379823), (45, 459941), (131, 157995), (393, 52665), (655, 31599), (1179, 17555), (1965, 10533), (3511, 5895)]