20797528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4933}}^1$

素因数の和:4987

約数の個数: 32

約数和(自身を含む): 42629760

約数和(自身を除く): 21832232

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 4933, 9866, 19732, 39464, 83861, 152923, 167722, 305846, 335444, 611692, 670888, 1223384, 2599691, 5199382, 10398764, 20797528]

約数ペア:

[(1, 20797528), (2, 10398764), (4, 5199382), (8, 2599691), (17, 1223384), (31, 670888), (34, 611692), (62, 335444), (68, 305846), (124, 167722), (136, 152923), (248, 83861), (527, 39464), (1054, 19732), (2108, 9866), (4216, 4933)]