12961431

素因数分解:

$3^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 22790880

約数和(自身を除く): 9829449

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 97, 101, 147, 189, 291, 303, 441, 679, 707, 873, 909, 1323, 2037, 2121, 2619, 2727, 4753, 4949, 6111, 6363, 9797, 14259, 14847, 18333, 19089, 29391, 42777, 44541, 68579, 88173, 128331, 133623, 205737, 264519, 480053, 617211, 1440159, 1851633, 4320477, 12961431]

約数ペア:

[(1, 12961431), (3, 4320477), (7, 1851633), (9, 1440159), (21, 617211), (27, 480053), (49, 264519), (63, 205737), (97, 133623), (101, 128331), (147, 88173), (189, 68579), (291, 44541), (303, 42777), (441, 29391), (679, 19089), (707, 18333), (873, 14847), (909, 14259), (1323, 9797), (2037, 6363), (2121, 6111), (2619, 4949), (2727, 4753)]