20017148

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{641}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 36203664

約数和(自身を除く): 16186516

約数列:

[1, 2, 4, 37, 74, 148, 211, 422, 641, 844, 1282, 2564, 7807, 15614, 23717, 31228, 47434, 94868, 135251, 270502, 541004, 5004287, 10008574, 20017148]

約数ペア:

[(1, 20017148), (2, 10008574), (4, 5004287), (37, 541004), (74, 270502), (148, 135251), (211, 94868), (422, 47434), (641, 31228), (844, 23717), (1282, 15614), (2564, 7807)]