21574774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 36733536

約数和(自身を除く): 15158762

約数列:

[1, 2, 13, 26, 37, 41, 74, 82, 481, 533, 547, 962, 1066, 1094, 1517, 3034, 7111, 14222, 19721, 20239, 22427, 39442, 40478, 44854, 263107, 291551, 526214, 583102, 829799, 1659598, 10787387, 21574774]

約数ペア:

[(1, 21574774), (2, 10787387), (13, 1659598), (26, 829799), (37, 583102), (41, 526214), (74, 291551), (82, 263107), (481, 44854), (533, 40478), (547, 39442), (962, 22427), (1066, 20239), (1094, 19721), (1517, 14222), (3034, 7111)]