66978681

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{289951}}^1$

素因数の和:289972

約数の個数: 16

約数和(自身を含む): 111341568

約数和(自身を除く): 44362887

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 289951, 869853, 2029657, 3189461, 6088971, 9568383, 22326227, 66978681]

約数ペア:

[(1, 66978681), (3, 22326227), (7, 9568383), (11, 6088971), (21, 3189461), (33, 2029657), (77, 869853), (231, 289951)]