20986038

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16421}}^1$

素因数の和:16500

約数の個数: 24

約数和(自身を含む): 46112976

約数和(自身を除く): 25126938

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16421, 32842, 49263, 98526, 147789, 295578, 1165891, 2331782, 3497673, 6995346, 10493019, 20986038]

約数ペア:

[(1, 20986038), (2, 10493019), (3, 6995346), (6, 3497673), (9, 2331782), (18, 1165891), (71, 295578), (142, 147789), (213, 98526), (426, 49263), (639, 32842), (1278, 16421)]