21678210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{240869}}^1$

素因数の和:240882

約数の個数: 24

約数和(自身を含む): 56363580

約数和(自身を除く): 34685370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 240869, 481738, 722607, 1204345, 1445214, 2167821, 2408690, 3613035, 4335642, 7226070, 10839105, 21678210]

約数ペア:

[(1, 21678210), (2, 10839105), (3, 7226070), (5, 4335642), (6, 3613035), (9, 2408690), (10, 2167821), (15, 1445214), (18, 1204345), (30, 722607), (45, 481738), (90, 240869)]