31393791

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 24731649

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 47, 99, 117, 141, 143, 173, 297, 351, 423, 429, 517, 519, 611, 1269, 1287, 1551, 1557, 1833, 1903, 2249, 3861, 4653, 4671, 5499, 5709, 6721, 6747, 8131, 13959, 16497, 17127, 20163, 20241, 24393, 24739, 51381, 60489, 60723, 73179, 74217, 89441, 105703, 181467, 219537, 222651, 268323, 317109, 667953, 804969, 951327, 1162733, 2414907, 2853981, 3488199, 10464597, 31393791]

約数ペア:

[(1, 31393791), (3, 10464597), (9, 3488199), (11, 2853981), (13, 2414907), (27, 1162733), (33, 951327), (39, 804969), (47, 667953), (99, 317109), (117, 268323), (141, 222651), (143, 219537), (173, 181467), (297, 105703), (351, 89441), (423, 74217), (429, 73179), (517, 60723), (519, 60489), (611, 51381), (1269, 24739), (1287, 24393), (1551, 20241), (1557, 20163), (1833, 17127), (1903, 16497), (2249, 13959), (3861, 8131), (4653, 6747), (4671, 6721), (5499, 5709)]