20389626

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{8647}}^1$

素因数の和:8786

約数の個数: 24

約数和(自身を含む): 44519904

約数和(自身を除く): 24130278

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 8647, 17294, 25941, 51882, 77823, 155646, 1132757, 2265514, 3398271, 6796542, 10194813, 20389626]

約数ペア:

[(1, 20389626), (2, 10194813), (3, 6796542), (6, 3398271), (9, 2265514), (18, 1132757), (131, 155646), (262, 77823), (393, 51882), (786, 25941), (1179, 17294), (2358, 8647)]