21674480

素因数分解:

$2^4\times 5^1\times {\mathrm{270931}}^1$

素因数の和:270944

約数の個数: 20

約数和(自身を含む): 50393352

約数和(自身を除く): 28718872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270931, 541862, 1083724, 1354655, 2167448, 2709310, 4334896, 5418620, 10837240, 21674480]

約数ペア:

[(1, 21674480), (2, 10837240), (4, 5418620), (5, 4334896), (8, 2709310), (10, 2167448), (16, 1354655), (20, 1083724), (40, 541862), (80, 270931)]