20712726

素因数分解:

$2^1\times 3^3\times {\mathrm{541}}^1\times {\mathrm{709}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 46178400

約数和(自身を除く): 25465674

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 541, 709, 1082, 1418, 1623, 2127, 3246, 4254, 4869, 6381, 9738, 12762, 14607, 19143, 29214, 38286, 383569, 767138, 1150707, 2301414, 3452121, 6904242, 10356363, 20712726]

約数ペア:

[(1, 20712726), (2, 10356363), (3, 6904242), (6, 3452121), (9, 2301414), (18, 1150707), (27, 767138), (54, 383569), (541, 38286), (709, 29214), (1082, 19143), (1418, 14607), (1623, 12762), (2127, 9738), (3246, 6381), (4254, 4869)]