13900271

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 19649952

約数和(自身を除く): 5749681

約数列:

[1, 7, 11, 17, 37, 41, 49, 77, 119, 187, 259, 287, 407, 451, 539, 629, 697, 833, 1309, 1517, 1813, 2009, 2849, 3157, 4403, 4879, 6919, 7667, 9163, 10619, 16687, 19943, 22099, 25789, 30821, 34153, 48433, 53669, 74333, 116809, 180523, 283679, 339031, 375683, 817663, 1263661, 1985753, 13900271]

約数ペア:

[(1, 13900271), (7, 1985753), (11, 1263661), (17, 817663), (37, 375683), (41, 339031), (49, 283679), (77, 180523), (119, 116809), (187, 74333), (259, 53669), (287, 48433), (407, 34153), (451, 30821), (539, 25789), (629, 22099), (697, 19943), (833, 16687), (1309, 10619), (1517, 9163), (1813, 7667), (2009, 6919), (2849, 4879), (3157, 4403)]