21671408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2087}}^1$

素因数の和:2165

約数の個数: 40

約数和(自身を含む): 46604160

約数和(自身を除く): 24932752

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 59, 88, 118, 176, 236, 472, 649, 944, 1298, 2087, 2596, 4174, 5192, 8348, 10384, 16696, 22957, 33392, 45914, 91828, 123133, 183656, 246266, 367312, 492532, 985064, 1354463, 1970128, 2708926, 5417852, 10835704, 21671408]

約数ペア:

[(1, 21671408), (2, 10835704), (4, 5417852), (8, 2708926), (11, 1970128), (16, 1354463), (22, 985064), (44, 492532), (59, 367312), (88, 246266), (118, 183656), (176, 123133), (236, 91828), (472, 45914), (649, 33392), (944, 22957), (1298, 16696), (2087, 10384), (2596, 8348), (4174, 5192)]