21084930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13781}}^1$

素因数の和:13811

約数の個数: 48

約数和(自身を含む): 58049784

約数和(自身を除く): 36964854

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 13781, 27562, 41343, 68905, 82686, 124029, 137810, 206715, 234277, 248058, 413430, 468554, 620145, 702831, 1171385, 1240290, 1405662, 2108493, 2342770, 3514155, 4216986, 7028310, 10542465, 21084930]

約数ペア:

[(1, 21084930), (2, 10542465), (3, 7028310), (5, 4216986), (6, 3514155), (9, 2342770), (10, 2108493), (15, 1405662), (17, 1240290), (18, 1171385), (30, 702831), (34, 620145), (45, 468554), (51, 413430), (85, 248058), (90, 234277), (102, 206715), (153, 137810), (170, 124029), (255, 82686), (306, 68905), (510, 41343), (765, 27562), (1530, 13781)]