21390174

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{91411}}^1$

素因数の和:91432

約数の個数: 24

約数和(自身を含む): 49910952

約数和(自身を除く): 28520778

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 91411, 182822, 274233, 548466, 822699, 1188343, 1645398, 2376686, 3565029, 7130058, 10695087, 21390174]

約数ペア:

[(1, 21390174), (2, 10695087), (3, 7130058), (6, 3565029), (9, 2376686), (13, 1645398), (18, 1188343), (26, 822699), (39, 548466), (78, 274233), (117, 182822), (234, 91411)]