20648916

素因数分解:

$2^2\times 3^2\times {\mathrm{709}}^1\times {\mathrm{809}}^1$

素因数の和:1528

約数の個数: 36

約数和(自身を含む): 52334100

約数和(自身を除く): 31685184

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 709, 809, 1418, 1618, 2127, 2427, 2836, 3236, 4254, 4854, 6381, 7281, 8508, 9708, 12762, 14562, 25524, 29124, 573581, 1147162, 1720743, 2294324, 3441486, 5162229, 6882972, 10324458, 20648916]

約数ペア:

[(1, 20648916), (2, 10324458), (3, 6882972), (4, 5162229), (6, 3441486), (9, 2294324), (12, 1720743), (18, 1147162), (36, 573581), (709, 29124), (809, 25524), (1418, 14562), (1618, 12762), (2127, 9708), (2427, 8508), (2836, 7281), (3236, 6381), (4254, 4854)]