21510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239}}^1$

素因数の和:252

約数の個数: 24

約数和(自身を含む): 56160

約数和(自身を除く): 34650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239, 478, 717, 1195, 1434, 2151, 2390, 3585, 4302, 7170, 10755, 21510]

約数ペア:

[(1, 21510), (2, 10755), (3, 7170), (5, 4302), (6, 3585), (9, 2390), (10, 2151), (15, 1434), (18, 1195), (30, 717), (45, 478), (90, 239)]