19901048

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{31489}}^1$

素因数の和:31574

約数の個数: 16

約数和(自身を含む): 37788000

約数和(自身を除く): 17886952

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 31489, 62978, 125956, 251912, 2487631, 4975262, 9950524, 19901048]

約数ペア:

[(1, 19901048), (2, 9950524), (4, 4975262), (8, 2487631), (79, 251912), (158, 125956), (316, 62978), (632, 31489)]