21091020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351517}}^1$

素因数の和:351529

約数の個数: 24

約数和(自身を含む): 59055024

約数和(自身を除く): 37964004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351517, 703034, 1054551, 1406068, 1757585, 2109102, 3515170, 4218204, 5272755, 7030340, 10545510, 21091020]

約数ペア:

[(1, 21091020), (2, 10545510), (3, 7030340), (4, 5272755), (5, 4218204), (6, 3515170), (10, 2109102), (12, 1757585), (15, 1406068), (20, 1054551), (30, 703034), (60, 351517)]