19958576

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{751}}^1$

素因数の和:921

約数の個数: 40

約数和(自身を含む): 42521088

約数和(自身を除く): 22562512

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 151, 176, 302, 604, 751, 1208, 1502, 1661, 2416, 3004, 3322, 6008, 6644, 8261, 12016, 13288, 16522, 26576, 33044, 66088, 113401, 132176, 226802, 453604, 907208, 1247411, 1814416, 2494822, 4989644, 9979288, 19958576]

約数ペア:

[(1, 19958576), (2, 9979288), (4, 4989644), (8, 2494822), (11, 1814416), (16, 1247411), (22, 907208), (44, 453604), (88, 226802), (151, 132176), (176, 113401), (302, 66088), (604, 33044), (751, 26576), (1208, 16522), (1502, 13288), (1661, 12016), (2416, 8261), (3004, 6644), (3322, 6008)]