20591312

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1627}}^1$

素因数の和:1755

約数の個数: 40

約数和(自身を含む): 46026816

約数和(自身を除く): 25435504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1627, 1808, 3164, 3254, 6328, 6508, 11389, 12656, 13016, 22778, 26032, 45556, 91112, 182224, 183851, 367702, 735404, 1286957, 1470808, 2573914, 2941616, 5147828, 10295656, 20591312]

約数ペア:

[(1, 20591312), (2, 10295656), (4, 5147828), (7, 2941616), (8, 2573914), (14, 1470808), (16, 1286957), (28, 735404), (56, 367702), (112, 183851), (113, 182224), (226, 91112), (452, 45556), (791, 26032), (904, 22778), (1582, 13016), (1627, 12656), (1808, 11389), (3164, 6508), (3254, 6328)]