21105708

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{701}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 53385696

約数和(自身を除く): 32279988

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 193, 386, 579, 701, 772, 1158, 1402, 2103, 2316, 2509, 2804, 4206, 5018, 7527, 8412, 9113, 10036, 15054, 18226, 27339, 30108, 36452, 54678, 109356, 135293, 270586, 405879, 541172, 811758, 1623516, 1758809, 3517618, 5276427, 7035236, 10552854, 21105708]

約数ペア:

[(1, 21105708), (2, 10552854), (3, 7035236), (4, 5276427), (6, 3517618), (12, 1758809), (13, 1623516), (26, 811758), (39, 541172), (52, 405879), (78, 270586), (156, 135293), (193, 109356), (386, 54678), (579, 36452), (701, 30108), (772, 27339), (1158, 18226), (1402, 15054), (2103, 10036), (2316, 9113), (2509, 8412), (2804, 7527), (4206, 5018)]