20391488

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{24509}}^1$

素因数の和:24534

約数の個数: 28

約数和(自身を含む): 43578780

約数和(自身を除く): 23187292

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 24509, 49018, 98036, 196072, 318617, 392144, 637234, 784288, 1274468, 1568576, 2548936, 5097872, 10195744, 20391488]

約数ペア:

[(1, 20391488), (2, 10195744), (4, 5097872), (8, 2548936), (13, 1568576), (16, 1274468), (26, 784288), (32, 637234), (52, 392144), (64, 318617), (104, 196072), (208, 98036), (416, 49018), (832, 24509)]