20615356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1931}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 38462256

約数和(自身を除く): 17846900

約数列:

[1, 2, 4, 17, 34, 68, 157, 314, 628, 1931, 2669, 3862, 5338, 7724, 10676, 32827, 65654, 131308, 303167, 606334, 1212668, 5153839, 10307678, 20615356]

約数ペア:

[(1, 20615356), (2, 10307678), (4, 5153839), (17, 1212668), (34, 606334), (68, 303167), (157, 131308), (314, 65654), (628, 32827), (1931, 10676), (2669, 7724), (3862, 5338)]