21820784

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{29017}}^1$

素因数の和:29072

約数の個数: 20

約数和(自身を含む): 43178784

約数和(自身を除く): 21358000

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 29017, 58034, 116068, 232136, 464272, 1363799, 2727598, 5455196, 10910392, 21820784]

約数ペア:

[(1, 21820784), (2, 10910392), (4, 5455196), (8, 2727598), (16, 1363799), (47, 464272), (94, 232136), (188, 116068), (376, 58034), (752, 29017)]