21976852

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4091}}^1$

素因数の和:4191

約数の個数: 24

約数和(自身を含む): 41247360

約数和(自身を除く): 19270508

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 4091, 5372, 8182, 16364, 69547, 139094, 278188, 323189, 646378, 1292756, 5494213, 10988426, 21976852]

約数ペア:

[(1, 21976852), (2, 10988426), (4, 5494213), (17, 1292756), (34, 646378), (68, 323189), (79, 278188), (158, 139094), (316, 69547), (1343, 16364), (2686, 8182), (4091, 5372)]