21000072

素因数分解:

$2^3\times 3^1\times {\mathrm{199}}^1\times {\mathrm{4397}}^1$

素因数の和:4605

約数の個数: 32

約数和(自身を含む): 52776000

約数和(自身を除く): 31775928

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 199, 398, 597, 796, 1194, 1592, 2388, 4397, 4776, 8794, 13191, 17588, 26382, 35176, 52764, 105528, 875003, 1750006, 2625009, 3500012, 5250018, 7000024, 10500036, 21000072]

約数ペア:

[(1, 21000072), (2, 10500036), (3, 7000024), (4, 5250018), (6, 3500012), (8, 2625009), (12, 1750006), (24, 875003), (199, 105528), (398, 52764), (597, 35176), (796, 26382), (1194, 17588), (1592, 13191), (2388, 8794), (4397, 4776)]