21764901

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{947}}^1$

素因数の和:1160

約数の個数: 16

約数和(自身を含む): 29850624

約数和(自身を除く): 8085723

約数列:

[1, 3, 47, 141, 163, 489, 947, 2841, 7661, 22983, 44509, 133527, 154361, 463083, 7254967, 21764901]

約数ペア:

[(1, 21764901), (3, 7254967), (47, 463083), (141, 154361), (163, 133527), (489, 44509), (947, 22983), (2841, 7661)]