19495664

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 39184992

約数和(自身を除く): 19689328

約数列:

[1, 2, 4, 8, 16, 41, 82, 113, 164, 226, 263, 328, 452, 526, 656, 904, 1052, 1808, 2104, 4208, 4633, 9266, 10783, 18532, 21566, 29719, 37064, 43132, 59438, 74128, 86264, 118876, 172528, 237752, 475504, 1218479, 2436958, 4873916, 9747832, 19495664]

約数ペア:

[(1, 19495664), (2, 9747832), (4, 4873916), (8, 2436958), (16, 1218479), (41, 475504), (82, 237752), (113, 172528), (164, 118876), (226, 86264), (263, 74128), (328, 59438), (452, 43132), (526, 37064), (656, 29719), (904, 21566), (1052, 18532), (1808, 10783), (2104, 9266), (4208, 4633)]