21815370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{242393}}^1$

素因数の和:242406

約数の個数: 24

約数和(自身を含む): 56720196

約数和(自身を除く): 34904826

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 242393, 484786, 727179, 1211965, 1454358, 2181537, 2423930, 3635895, 4363074, 7271790, 10907685, 21815370]

約数ペア:

[(1, 21815370), (2, 10907685), (3, 7271790), (5, 4363074), (6, 3635895), (9, 2423930), (10, 2181537), (15, 1454358), (18, 1211965), (30, 727179), (45, 484786), (90, 242393)]