21344980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56171}}^1$

素因数の和:56199

約数の個数: 24

約数和(自身を含む): 47184480

約数和(自身を除く): 25839500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56171, 112342, 224684, 280855, 561710, 1067249, 1123420, 2134498, 4268996, 5336245, 10672490, 21344980]

約数ペア:

[(1, 21344980), (2, 10672490), (4, 5336245), (5, 4268996), (10, 2134498), (19, 1123420), (20, 1067249), (38, 561710), (76, 280855), (95, 224684), (190, 112342), (380, 56171)]