20891028

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{102407}}^1$

素因数の和:102431

約数の個数: 24

約数和(自身を含む): 51613632

約数和(自身を除く): 30722604

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 102407, 204814, 307221, 409628, 614442, 1228884, 1740919, 3481838, 5222757, 6963676, 10445514, 20891028]

約数ペア:

[(1, 20891028), (2, 10445514), (3, 6963676), (4, 5222757), (6, 3481838), (12, 1740919), (17, 1228884), (34, 614442), (51, 409628), (68, 307221), (102, 204814), (204, 102407)]