21970936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 64

約数和(自身を含む): 48232800

約数和(自身を除く): 26261864

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 289, 344, 442, 559, 578, 731, 884, 1118, 1156, 1462, 1768, 2236, 2312, 2924, 3757, 4472, 4913, 5848, 7514, 9503, 9826, 12427, 15028, 19006, 19652, 24854, 30056, 38012, 39304, 49708, 63869, 76024, 99416, 127738, 161551, 211259, 255476, 323102, 422518, 510952, 646204, 845036, 1292408, 1690072, 2746367, 5492734, 10985468, 21970936]

約数ペア:

[(1, 21970936), (2, 10985468), (4, 5492734), (8, 2746367), (13, 1690072), (17, 1292408), (26, 845036), (34, 646204), (43, 510952), (52, 422518), (68, 323102), (86, 255476), (104, 211259), (136, 161551), (172, 127738), (221, 99416), (289, 76024), (344, 63869), (442, 49708), (559, 39304), (578, 38012), (731, 30056), (884, 24854), (1118, 19652), (1156, 19006), (1462, 15028), (1768, 12427), (2236, 9826), (2312, 9503), (2924, 7514), (3757, 5848), (4472, 4913)]