20401424

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17959}}^1$

素因数の和:18038

約数の個数: 20

約数和(自身を含む): 40086720

約数和(自身を除く): 19685296

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17959, 35918, 71836, 143672, 287344, 1275089, 2550178, 5100356, 10200712, 20401424]

約数ペア:

[(1, 20401424), (2, 10200712), (4, 5100356), (8, 2550178), (16, 1275089), (71, 287344), (142, 143672), (284, 71836), (568, 35918), (1136, 17959)]