18671780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54917}}^1$

素因数の和:54943

約数の個数: 24

約数和(自身を含む): 41518008

約数和(自身を除く): 22846228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54917, 109834, 219668, 274585, 549170, 933589, 1098340, 1867178, 3734356, 4667945, 9335890, 18671780]

約数ペア:

[(1, 18671780), (2, 9335890), (4, 4667945), (5, 3734356), (10, 1867178), (17, 1098340), (20, 933589), (34, 549170), (68, 274585), (85, 219668), (170, 109834), (340, 54917)]