20038221

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13829}}^1$

素因数の和:13865

約数の個数: 24

約数和(自身を含む): 34519680

約数和(自身を除く): 14481459

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13829, 41487, 96803, 124461, 290409, 318067, 871227, 954201, 2226469, 2862603, 6679407, 20038221]

約数ペア:

[(1, 20038221), (3, 6679407), (7, 2862603), (9, 2226469), (21, 954201), (23, 871227), (63, 318067), (69, 290409), (161, 124461), (207, 96803), (483, 41487), (1449, 13829)]