31507686

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:418

約数の個数: 72

約数和(自身を含む): 80294760

約数和(自身を除く): 48787074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 139, 147, 257, 278, 294, 417, 441, 514, 771, 834, 882, 973, 1251, 1542, 1799, 1946, 2313, 2502, 2919, 3598, 4626, 5397, 5838, 6811, 8757, 10794, 12593, 13622, 16191, 17514, 20433, 25186, 32382, 35723, 37779, 40866, 61299, 71446, 75558, 107169, 113337, 122598, 214338, 226674, 250061, 321507, 500122, 643014, 750183, 1500366, 1750427, 2250549, 3500854, 4501098, 5251281, 10502562, 15753843, 31507686]

約数ペア:

[(1, 31507686), (2, 15753843), (3, 10502562), (6, 5251281), (7, 4501098), (9, 3500854), (14, 2250549), (18, 1750427), (21, 1500366), (42, 750183), (49, 643014), (63, 500122), (98, 321507), (126, 250061), (139, 226674), (147, 214338), (257, 122598), (278, 113337), (294, 107169), (417, 75558), (441, 71446), (514, 61299), (771, 40866), (834, 37779), (882, 35723), (973, 32382), (1251, 25186), (1542, 20433), (1799, 17514), (1946, 16191), (2313, 13622), (2502, 12593), (2919, 10794), (3598, 8757), (4626, 6811), (5397, 5838)]