81429321

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 113414752

約数和(自身を除く): 31985431

約数列:

[1, 3, 41, 67, 123, 201, 241, 723, 1681, 2747, 5043, 8241, 9881, 16147, 29643, 48441, 112627, 337881, 405121, 662027, 1215363, 1986081, 27143107, 81429321]

約数ペア:

[(1, 81429321), (3, 27143107), (41, 1986081), (67, 1215363), (123, 662027), (201, 405121), (241, 337881), (723, 112627), (1681, 48441), (2747, 29643), (5043, 16147), (8241, 9881)]