20992858

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 34727616

約数和(自身を除く): 13734758

約数列:

[1, 2, 17, 34, 43, 83, 86, 166, 173, 346, 731, 1411, 1462, 2822, 2941, 3569, 5882, 7138, 7439, 14359, 14878, 28718, 60673, 121346, 126463, 244103, 252926, 488206, 617437, 1234874, 10496429, 20992858]

約数ペア:

[(1, 20992858), (2, 10496429), (17, 1234874), (34, 617437), (43, 488206), (83, 252926), (86, 244103), (166, 126463), (173, 121346), (346, 60673), (731, 28718), (1411, 14878), (1462, 14359), (2822, 7439), (2941, 7138), (3569, 5882)]