18213639

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 24989184

約数和(自身を除く): 6775545

約数列:

[1, 3, 43, 129, 271, 521, 813, 1563, 11653, 22403, 34959, 67209, 141191, 423573, 6071213, 18213639]

約数ペア:

[(1, 18213639), (3, 6071213), (43, 423573), (129, 141191), (271, 67209), (521, 34959), (813, 22403), (1563, 11653)]