20731664

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12829}}^1$

素因数の和:12938

約数の個数: 20

約数和(自身を含む): 40568460

約数和(自身を除く): 19836796

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12829, 25658, 51316, 102632, 205264, 1295729, 2591458, 5182916, 10365832, 20731664]

約数ペア:

[(1, 20731664), (2, 10365832), (4, 5182916), (8, 2591458), (16, 1295729), (101, 205264), (202, 102632), (404, 51316), (808, 25658), (1616, 12829)]