81370331

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 101122560

約数和(自身を除く): 19752229

約数列:

[1, 7, 19, 49, 71, 133, 497, 931, 1231, 1349, 3479, 8617, 9443, 23389, 60319, 66101, 87401, 163723, 611807, 1146061, 1660619, 4282649, 11624333, 81370331]

約数ペア:

[(1, 81370331), (7, 11624333), (19, 4282649), (49, 1660619), (71, 1146061), (133, 611807), (497, 163723), (931, 87401), (1231, 66101), (1349, 60319), (3479, 23389), (8617, 9443)]