81178867

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 104509440

約数和(自身を除く): 23330573

約数列:

[1, 7, 11, 59, 77, 107, 167, 413, 649, 749, 1169, 1177, 1837, 4543, 6313, 8239, 9853, 12859, 17869, 44191, 68971, 69443, 108383, 125083, 196559, 486101, 758681, 1054271, 1375913, 7379897, 11596981, 81178867]

約数ペア:

[(1, 81178867), (7, 11596981), (11, 7379897), (59, 1375913), (77, 1054271), (107, 758681), (167, 486101), (413, 196559), (649, 125083), (749, 108383), (1169, 69443), (1177, 68971), (1837, 44191), (4543, 17869), (6313, 12859), (8239, 9853)]