20862045

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5209}}^1$

素因数の和:5309

約数の個数: 24

約数和(自身を含む): 36574200

約数和(自身を除く): 15712155

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 5209, 15627, 26045, 46881, 78135, 234405, 463601, 1390803, 2318005, 4172409, 6954015, 20862045]

約数ペア:

[(1, 20862045), (3, 6954015), (5, 4172409), (9, 2318005), (15, 1390803), (45, 463601), (89, 234405), (267, 78135), (445, 46881), (801, 26045), (1335, 15627), (4005, 5209)]