20408145

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15287}}^1$

素因数の和:15384

約数の個数: 16

約数和(自身を含む): 33022080

約数和(自身を除く): 12613935

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 15287, 45861, 76435, 229305, 1360543, 4081629, 6802715, 20408145]

約数ペア:

[(1, 20408145), (3, 6802715), (5, 4081629), (15, 1360543), (89, 229305), (267, 76435), (445, 45861), (1335, 15287)]