18128456

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 35112000

約数和(自身を除く): 16983544

約数列:

[1, 2, 4, 8, 43, 86, 151, 172, 302, 344, 349, 604, 698, 1208, 1396, 2792, 6493, 12986, 15007, 25972, 30014, 51944, 52699, 60028, 105398, 120056, 210796, 421592, 2266057, 4532114, 9064228, 18128456]

約数ペア:

[(1, 18128456), (2, 9064228), (4, 4532114), (8, 2266057), (43, 421592), (86, 210796), (151, 120056), (172, 105398), (302, 60028), (344, 52699), (349, 51944), (604, 30014), (698, 25972), (1208, 15007), (1396, 12986), (2792, 6493)]