19691780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57917}}^1$

素因数の和:57943

約数の個数: 24

約数和(自身を含む): 43786008

約数和(自身を除く): 24094228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57917, 115834, 231668, 289585, 579170, 984589, 1158340, 1969178, 3938356, 4922945, 9845890, 19691780]

約数ペア:

[(1, 19691780), (2, 9845890), (4, 4922945), (5, 3938356), (10, 1969178), (17, 1158340), (20, 984589), (34, 579170), (68, 289585), (85, 231668), (170, 115834), (340, 57917)]