26658891

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1072

約数の個数: 36

約数和(自身を含む): 45574464

約数和(自身を除く): 18915573

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 991, 1281, 2973, 2989, 3843, 6937, 8919, 8967, 20811, 26901, 48559, 60451, 62433, 145677, 181353, 423157, 437031, 544059, 1269471, 2962099, 3808413, 8886297, 26658891]

約数ペア:

[(1, 26658891), (3, 8886297), (7, 3808413), (9, 2962099), (21, 1269471), (49, 544059), (61, 437031), (63, 423157), (147, 181353), (183, 145677), (427, 62433), (441, 60451), (549, 48559), (991, 26901), (1281, 20811), (2973, 8967), (2989, 8919), (3843, 6937)]