21106180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2699}}^1$

素因数の和:2748

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 27882620

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2699, 3910, 5398, 7820, 10796, 13495, 26990, 45883, 53980, 62077, 91766, 124154, 183532, 229415, 248308, 310385, 458830, 620770, 917660, 1055309, 1241540, 2110618, 4221236, 5276545, 10553090, 21106180]

約数ペア:

[(1, 21106180), (2, 10553090), (4, 5276545), (5, 4221236), (10, 2110618), (17, 1241540), (20, 1055309), (23, 917660), (34, 620770), (46, 458830), (68, 310385), (85, 248308), (92, 229415), (115, 183532), (170, 124154), (230, 91766), (340, 62077), (391, 53980), (460, 45883), (782, 26990), (1564, 13495), (1955, 10796), (2699, 7820), (3910, 5398)]