31388553

素因数分解:

$3^6\times 7^1\times {\mathrm{6151}}^1$

素因数の和:6176

約数の個数: 28

約数和(自身を含む): 53793088

約数和(自身を除く): 22404535

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 6151, 18453, 43057, 55359, 129171, 166077, 387513, 498231, 1162539, 1494693, 3487617, 4484079, 10462851, 31388553]

約数ペア:

[(1, 31388553), (3, 10462851), (7, 4484079), (9, 3487617), (21, 1494693), (27, 1162539), (63, 498231), (81, 387513), (189, 166077), (243, 129171), (567, 55359), (729, 43057), (1701, 18453), (5103, 6151)]