20711780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60917}}^1$

素因数の和:60943

約数の個数: 24

約数和(自身を含む): 46054008

約数和(自身を除く): 25342228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60917, 121834, 243668, 304585, 609170, 1035589, 1218340, 2071178, 4142356, 5177945, 10355890, 20711780]

約数ペア:

[(1, 20711780), (2, 10355890), (4, 5177945), (5, 4142356), (10, 2071178), (17, 1218340), (20, 1035589), (34, 609170), (68, 304585), (85, 243668), (170, 121834), (340, 60917)]