18804615

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 12644985

約数列:

[1, 3, 5, 15, 29, 87, 139, 145, 311, 417, 435, 695, 933, 1555, 2085, 4031, 4665, 9019, 12093, 20155, 27057, 43229, 45095, 60465, 129687, 135285, 216145, 648435, 1253641, 3760923, 6268205, 18804615]

約数ペア:

[(1, 18804615), (3, 6268205), (5, 3760923), (15, 1253641), (29, 648435), (87, 216145), (139, 135285), (145, 129687), (311, 60465), (417, 45095), (435, 43229), (695, 27057), (933, 20155), (1555, 12093), (2085, 9019), (4031, 4665)]