20358611

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 26707968

約数和(自身を除く): 6349357

約数列:

[1, 7, 13, 23, 71, 91, 137, 161, 299, 497, 923, 959, 1633, 1781, 2093, 3151, 6461, 9727, 11431, 12467, 21229, 22057, 40963, 68089, 126451, 148603, 223721, 286741, 885157, 1566047, 2908373, 20358611]

約数ペア:

[(1, 20358611), (7, 2908373), (13, 1566047), (23, 885157), (71, 286741), (91, 223721), (137, 148603), (161, 126451), (299, 68089), (497, 40963), (923, 22057), (959, 21229), (1633, 12467), (1781, 11431), (2093, 9727), (3151, 6461)]