18866042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13067398

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 263, 403, 526, 806, 1157, 2314, 2759, 3419, 5518, 6838, 8153, 16306, 23407, 35867, 46814, 71734, 105989, 211978, 304291, 608582, 725617, 1451234, 9433021, 18866042]

約数ペア:

[(1, 18866042), (2, 9433021), (13, 1451234), (26, 725617), (31, 608582), (62, 304291), (89, 211978), (178, 105989), (263, 71734), (403, 46814), (526, 35867), (806, 23407), (1157, 16306), (2314, 8153), (2759, 6838), (3419, 5518)]