21247270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{829}}^1$

素因数の和:1080

約数の個数: 32

約数和(自身を含む): 41951520

約数和(自身を除く): 20704250

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 233, 466, 829, 1165, 1658, 2330, 2563, 4145, 5126, 8290, 9119, 12815, 18238, 25630, 45595, 91190, 193157, 386314, 965785, 1931570, 2124727, 4249454, 10623635, 21247270]

約数ペア:

[(1, 21247270), (2, 10623635), (5, 4249454), (10, 2124727), (11, 1931570), (22, 965785), (55, 386314), (110, 193157), (233, 91190), (466, 45595), (829, 25630), (1165, 18238), (1658, 12815), (2330, 9119), (2563, 8290), (4145, 5126)]