20705426

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 36503040

約数和(自身を除く): 15797614

約数列:

[1, 2, 7, 14, 79, 97, 158, 193, 194, 386, 553, 679, 1106, 1351, 1358, 2702, 7663, 15247, 15326, 18721, 30494, 37442, 53641, 106729, 107282, 131047, 213458, 262094, 1478959, 2957918, 10352713, 20705426]

約数ペア:

[(1, 20705426), (2, 10352713), (7, 2957918), (14, 1478959), (79, 262094), (97, 213458), (158, 131047), (193, 107282), (194, 106729), (386, 53641), (553, 37442), (679, 30494), (1106, 18721), (1351, 15326), (1358, 15247), (2702, 7663)]