21893180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26699}}^1$

素因数の和:26749

約数の個数: 24

約数和(自身を含む): 47098800

約数和(自身を除く): 25205620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26699, 53398, 106796, 133495, 266990, 533980, 1094659, 2189318, 4378636, 5473295, 10946590, 21893180]

約数ペア:

[(1, 21893180), (2, 10946590), (4, 5473295), (5, 4378636), (10, 2189318), (20, 1094659), (41, 533980), (82, 266990), (164, 133495), (205, 106796), (410, 53398), (820, 26699)]