21518988

素因数分解:

$2^2\times 3^1\times {\mathrm{397}}^1\times {\mathrm{4517}}^1$

素因数の和:4921

約数の個数: 24

約数和(自身を含む): 50348592

約数和(自身を除く): 28829604

約数列:

[1, 2, 3, 4, 6, 12, 397, 794, 1191, 1588, 2382, 4517, 4764, 9034, 13551, 18068, 27102, 54204, 1793249, 3586498, 5379747, 7172996, 10759494, 21518988]

約数ペア:

[(1, 21518988), (2, 10759494), (3, 7172996), (4, 5379747), (6, 3586498), (12, 1793249), (397, 54204), (794, 27102), (1191, 18068), (1588, 13551), (2382, 9034), (4517, 4764)]