19981208

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{14779}}^1$

素因数の和:14811

約数の個数: 24

約数和(自身を含む): 40571100

約数和(自身を除く): 20589892

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 14779, 29558, 59116, 118232, 192127, 384254, 768508, 1537016, 2497651, 4995302, 9990604, 19981208]

約数ペア:

[(1, 19981208), (2, 9990604), (4, 4995302), (8, 2497651), (13, 1537016), (26, 768508), (52, 384254), (104, 192127), (169, 118232), (338, 59116), (676, 29558), (1352, 14779)]