31387986

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:421

約数の個数: 80

約数和(自身を含む): 81544320

約数和(自身を除く): 50156334

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 89, 126, 162, 178, 189, 267, 311, 378, 534, 567, 622, 623, 801, 933, 1134, 1246, 1602, 1866, 1869, 2177, 2403, 2799, 3738, 4354, 4806, 5598, 5607, 6531, 7209, 8397, 11214, 13062, 14418, 16794, 16821, 19593, 25191, 27679, 33642, 39186, 50382, 50463, 55358, 58779, 83037, 100926, 117558, 166074, 176337, 193753, 249111, 352674, 387506, 498222, 581259, 747333, 1162518, 1494666, 1743777, 2241999, 3487554, 4483998, 5231331, 10462662, 15693993, 31387986]

約数ペア:

[(1, 31387986), (2, 15693993), (3, 10462662), (6, 5231331), (7, 4483998), (9, 3487554), (14, 2241999), (18, 1743777), (21, 1494666), (27, 1162518), (42, 747333), (54, 581259), (63, 498222), (81, 387506), (89, 352674), (126, 249111), (162, 193753), (178, 176337), (189, 166074), (267, 117558), (311, 100926), (378, 83037), (534, 58779), (567, 55358), (622, 50463), (623, 50382), (801, 39186), (933, 33642), (1134, 27679), (1246, 25191), (1602, 19593), (1866, 16821), (1869, 16794), (2177, 14418), (2403, 13062), (2799, 11214), (3738, 8397), (4354, 7209), (4806, 6531), (5598, 5607)]