21918790

素因数分解:

$2^1\times 5^1\times {\mathrm{619}}^1\times {\mathrm{3541}}^1$

素因数の和:4167

約数の個数: 16

約数和(自身を含む): 39528720

約数和(自身を除く): 17609930

約数列:

[1, 2, 5, 10, 619, 1238, 3095, 3541, 6190, 7082, 17705, 35410, 2191879, 4383758, 10959395, 21918790]

約数ペア:

[(1, 21918790), (2, 10959395), (5, 4383758), (10, 2191879), (619, 35410), (1238, 17705), (3095, 7082), (3541, 6190)]