21767718

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 53982720

約数和(自身を除く): 32215002

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 43, 51, 86, 102, 119, 129, 238, 258, 301, 357, 602, 709, 714, 731, 903, 1418, 1462, 1806, 2127, 2193, 4254, 4386, 4963, 5117, 9926, 10234, 12053, 14889, 15351, 24106, 29778, 30487, 30702, 36159, 60974, 72318, 84371, 91461, 168742, 182922, 213409, 253113, 426818, 506226, 518279, 640227, 1036558, 1280454, 1554837, 3109674, 3627953, 7255906, 10883859, 21767718]

約数ペア:

[(1, 21767718), (2, 10883859), (3, 7255906), (6, 3627953), (7, 3109674), (14, 1554837), (17, 1280454), (21, 1036558), (34, 640227), (42, 518279), (43, 506226), (51, 426818), (86, 253113), (102, 213409), (119, 182922), (129, 168742), (238, 91461), (258, 84371), (301, 72318), (357, 60974), (602, 36159), (709, 30702), (714, 30487), (731, 29778), (903, 24106), (1418, 15351), (1462, 14889), (1806, 12053), (2127, 10234), (2193, 9926), (4254, 5117), (4386, 4963)]