18581416

素因数分解:

$2^3\times 7^1\times {\mathrm{449}}^1\times {\mathrm{739}}^1$

素因数の和:1201

約数の個数: 32

約数和(自身を含む): 39960000

約数和(自身を除く): 21378584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 449, 739, 898, 1478, 1796, 2956, 3143, 3592, 5173, 5912, 6286, 10346, 12572, 20692, 25144, 41384, 331811, 663622, 1327244, 2322677, 2654488, 4645354, 9290708, 18581416]

約数ペア:

[(1, 18581416), (2, 9290708), (4, 4645354), (7, 2654488), (8, 2322677), (14, 1327244), (28, 663622), (56, 331811), (449, 41384), (739, 25144), (898, 20692), (1478, 12572), (1796, 10346), (2956, 6286), (3143, 5912), (3592, 5173)]