21986876

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{659}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 40656000

約数和(自身を除く): 18669124

約数列:

[1, 2, 4, 19, 38, 76, 439, 659, 878, 1318, 1756, 2636, 8341, 12521, 16682, 25042, 33364, 50084, 289301, 578602, 1157204, 5496719, 10993438, 21986876]

約数ペア:

[(1, 21986876), (2, 10993438), (4, 5496719), (19, 1157204), (38, 578602), (76, 289301), (439, 50084), (659, 33364), (878, 25042), (1318, 16682), (1756, 12521), (2636, 8341)]