21716620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57149}}^1$

素因数の和:57177

約数の個数: 24

約数和(自身を含む): 48006000

約数和(自身を除く): 26289380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57149, 114298, 228596, 285745, 571490, 1085831, 1142980, 2171662, 4343324, 5429155, 10858310, 21716620]

約数ペア:

[(1, 21716620), (2, 10858310), (4, 5429155), (5, 4343324), (10, 2171662), (19, 1142980), (20, 1085831), (38, 571490), (76, 285745), (95, 228596), (190, 114298), (380, 57149)]