18218996961

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{26539}}^1$

素因数の和:26917

約数の個数: 32

約数和(自身を含む): 26966338560

約数和(自身を除く): 8747341599

約数列:

[1, 3, 11, 33, 71, 213, 293, 781, 879, 2343, 3223, 9669, 20803, 26539, 62409, 79617, 228833, 291929, 686499, 875787, 1884269, 5652807, 7775927, 20726959, 23327781, 62180877, 85535197, 256605591, 552090817, 1656272451, 6072998987, 18218996961]

約数ペア:

[(1, 18218996961), (3, 6072998987), (11, 1656272451), (33, 552090817), (71, 256605591), (213, 85535197), (293, 62180877), (781, 23327781), (879, 20726959), (2343, 7775927), (3223, 5652807), (9669, 1884269), (20803, 875787), (26539, 686499), (62409, 291929), (79617, 228833)]