21860505

素因数分解:

$3^2\times 5^1\times {\mathrm{599}}^1\times {\mathrm{811}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 38001600

約数和(自身を除く): 16141095

約数列:

[1, 3, 5, 9, 15, 45, 599, 811, 1797, 2433, 2995, 4055, 5391, 7299, 8985, 12165, 26955, 36495, 485789, 1457367, 2428945, 4372101, 7286835, 21860505]

約数ペア:

[(1, 21860505), (3, 7286835), (5, 4372101), (9, 2428945), (15, 1457367), (45, 485789), (599, 36495), (811, 26955), (1797, 12165), (2433, 8985), (2995, 7299), (4055, 5391)]