21334510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68821}}^1$

素因数の和:68859

約数の個数: 16

約数和(自身を含む): 39641472

約数和(自身を除く): 18306962

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68821, 137642, 344105, 688210, 2133451, 4266902, 10667255, 21334510]

約数ペア:

[(1, 21334510), (2, 10667255), (5, 4266902), (10, 2133451), (31, 688210), (62, 344105), (155, 137642), (310, 68821)]