19500724

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 34937000

約数和(自身を除く): 15436276

約数列:

[1, 2, 4, 61, 122, 229, 244, 349, 458, 698, 916, 1396, 13969, 21289, 27938, 42578, 55876, 79921, 85156, 159842, 319684, 4875181, 9750362, 19500724]

約数ペア:

[(1, 19500724), (2, 9750362), (4, 4875181), (61, 319684), (122, 159842), (229, 85156), (244, 79921), (349, 55876), (458, 42578), (698, 27938), (916, 21289), (1396, 13969)]