20518806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1931}}^1$

素因数の和:1977

約数の個数: 64

約数和(自身を含む): 53415936

約数和(自身を除く): 32897130

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 42, 46, 66, 69, 77, 138, 154, 161, 231, 253, 322, 462, 483, 506, 759, 966, 1518, 1771, 1931, 3542, 3862, 5313, 5793, 10626, 11586, 13517, 21241, 27034, 40551, 42482, 44413, 63723, 81102, 88826, 127446, 133239, 148687, 266478, 297374, 310891, 446061, 488543, 621782, 892122, 932673, 977086, 1465629, 1865346, 2931258, 3419801, 6839602, 10259403, 20518806]

約数ペア:

[(1, 20518806), (2, 10259403), (3, 6839602), (6, 3419801), (7, 2931258), (11, 1865346), (14, 1465629), (21, 977086), (22, 932673), (23, 892122), (33, 621782), (42, 488543), (46, 446061), (66, 310891), (69, 297374), (77, 266478), (138, 148687), (154, 133239), (161, 127446), (231, 88826), (253, 81102), (322, 63723), (462, 44413), (483, 42482), (506, 40551), (759, 27034), (966, 21241), (1518, 13517), (1771, 11586), (1931, 10626), (3542, 5793), (3862, 5313)]