21132774

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{6947}}^1$

素因数の和:6981

約数の個数: 36

約数和(自身を含む): 49587876

約数和(自身を除く): 28455102

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 6947, 13894, 20841, 41682, 62523, 90311, 125046, 180622, 270933, 541866, 812799, 1174043, 1625598, 2348086, 3522129, 7044258, 10566387, 21132774]

約数ペア:

[(1, 21132774), (2, 10566387), (3, 7044258), (6, 3522129), (9, 2348086), (13, 1625598), (18, 1174043), (26, 812799), (39, 541866), (78, 270933), (117, 180622), (169, 125046), (234, 90311), (338, 62523), (507, 41682), (1014, 20841), (1521, 13894), (3042, 6947)]