18828784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90523}}^1$

素因数の和:90544

約数の個数: 20

約数和(自身を含む): 39287416

約数和(自身を除く): 20458632

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90523, 181046, 362092, 724184, 1176799, 1448368, 2353598, 4707196, 9414392, 18828784]

約数ペア:

[(1, 18828784), (2, 9414392), (4, 4707196), (8, 2353598), (13, 1448368), (16, 1176799), (26, 724184), (52, 362092), (104, 181046), (208, 90523)]