19907684

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 35804160

約数和(自身を除く): 15896476

約数列:

[1, 2, 4, 73, 79, 146, 158, 292, 316, 863, 1726, 3452, 5767, 11534, 23068, 62999, 68177, 125998, 136354, 251996, 272708, 4976921, 9953842, 19907684]

約数ペア:

[(1, 19907684), (2, 9953842), (4, 4976921), (73, 272708), (79, 251996), (146, 136354), (158, 125998), (292, 68177), (316, 62999), (863, 23068), (1726, 11534), (3452, 5767)]