21597810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{701}}^1$

素因数の和:803

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35011470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 701, 790, 1027, 1185, 1402, 2054, 2103, 2370, 3081, 3505, 4206, 5135, 6162, 7010, 9113, 10270, 10515, 15405, 18226, 21030, 27339, 30810, 45565, 54678, 55379, 91130, 110758, 136695, 166137, 273390, 276895, 332274, 553790, 719927, 830685, 1439854, 1661370, 2159781, 3599635, 4319562, 7199270, 10798905, 21597810]

約数ペア:

[(1, 21597810), (2, 10798905), (3, 7199270), (5, 4319562), (6, 3599635), (10, 2159781), (13, 1661370), (15, 1439854), (26, 830685), (30, 719927), (39, 553790), (65, 332274), (78, 276895), (79, 273390), (130, 166137), (158, 136695), (195, 110758), (237, 91130), (390, 55379), (395, 54678), (474, 45565), (701, 30810), (790, 27339), (1027, 21030), (1185, 18226), (1402, 15405), (2054, 10515), (2103, 10270), (2370, 9113), (3081, 7010), (3505, 6162), (4206, 5135)]