8971221

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{5147}}^1$

素因数の和:5240

約数の個数: 16

約数和(自身を含む): 13837824

約数和(自身を除く): 4866603

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 5147, 15441, 36029, 108087, 427201, 1281603, 2990407, 8971221]

約数ペア:

[(1, 8971221), (3, 2990407), (7, 1281603), (21, 427201), (83, 108087), (249, 36029), (581, 15441), (1743, 5147)]