31239801

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 46743840

約数和(自身を除く): 15504039

約数列:

[1, 3, 9, 43, 89, 129, 267, 387, 801, 907, 2721, 3827, 8163, 11481, 34443, 39001, 80723, 117003, 242169, 351009, 726507, 3471089, 10413267, 31239801]

約数ペア:

[(1, 31239801), (3, 10413267), (9, 3471089), (43, 726507), (89, 351009), (129, 242169), (267, 117003), (387, 80723), (801, 39001), (907, 34443), (2721, 11481), (3827, 8163)]