21409324

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{877}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 39826080

約数和(自身を除く): 18416756

約数列:

[1, 2, 4, 17, 34, 68, 359, 718, 877, 1436, 1754, 3508, 6103, 12206, 14909, 24412, 29818, 59636, 314843, 629686, 1259372, 5352331, 10704662, 21409324]

約数ペア:

[(1, 21409324), (2, 10704662), (4, 5352331), (17, 1259372), (34, 629686), (68, 314843), (359, 59636), (718, 29818), (877, 24412), (1436, 14909), (1754, 12206), (3508, 6103)]