21119248

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11681}}^1$

素因数の和:11802

約数の個数: 20

約数和(自身を含む): 41284188

約数和(自身を除く): 20164940

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11681, 23362, 46724, 93448, 186896, 1319953, 2639906, 5279812, 10559624, 21119248]

約数ペア:

[(1, 21119248), (2, 10559624), (4, 5279812), (8, 2639906), (16, 1319953), (113, 186896), (226, 93448), (452, 46724), (904, 23362), (1808, 11681)]