81427359

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1433}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 123346944

約数和(自身を除く): 41919585

約数列:

[1, 3, 13, 31, 39, 47, 93, 141, 403, 611, 1209, 1433, 1457, 1833, 4299, 4371, 18629, 18941, 44423, 55887, 56823, 67351, 133269, 202053, 577499, 875563, 1732497, 2087881, 2626689, 6263643, 27142453, 81427359]

約数ペア:

[(1, 81427359), (3, 27142453), (13, 6263643), (31, 2626689), (39, 2087881), (47, 1732497), (93, 875563), (141, 577499), (403, 202053), (611, 133269), (1209, 67351), (1433, 56823), (1457, 55887), (1833, 44423), (4299, 18941), (4371, 18629)]