13189281

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 22063104

約数和(自身を除く): 8873823

約数列:

[1, 3, 7, 21, 23, 47, 49, 69, 83, 141, 147, 161, 249, 329, 483, 581, 987, 1081, 1127, 1743, 1909, 2303, 3243, 3381, 3901, 4067, 5727, 6909, 7567, 11703, 12201, 13363, 22701, 27307, 40089, 52969, 81921, 89723, 93541, 158907, 191149, 269169, 280623, 573447, 628061, 1884183, 4396427, 13189281]

約数ペア:

[(1, 13189281), (3, 4396427), (7, 1884183), (21, 628061), (23, 573447), (47, 280623), (49, 269169), (69, 191149), (83, 158907), (141, 93541), (147, 89723), (161, 81921), (249, 52969), (329, 40089), (483, 27307), (581, 22701), (987, 13363), (1081, 12201), (1127, 11703), (1743, 7567), (1909, 6909), (2303, 5727), (3243, 4067), (3381, 3901)]