21630465

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20899}}^1$

素因数の和:20933

約数の個数: 24

約数和(自身を含む): 39124800

約数和(自身を除く): 17494335

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20899, 62697, 104495, 188091, 313485, 480677, 940455, 1442031, 2403385, 4326093, 7210155, 21630465]

約数ペア:

[(1, 21630465), (3, 7210155), (5, 4326093), (9, 2403385), (15, 1442031), (23, 940455), (45, 480677), (69, 313485), (115, 188091), (207, 104495), (345, 62697), (1035, 20899)]