21973926

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{281717}}^1$

素因数の和:281735

約数の個数: 16

約数和(自身を含む): 47328624

約数和(自身を除く): 25354698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 281717, 563434, 845151, 1690302, 3662321, 7324642, 10986963, 21973926]

約数ペア:

[(1, 21973926), (2, 10986963), (3, 7324642), (6, 3662321), (13, 1690302), (26, 845151), (39, 563434), (78, 281717)]