991967185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{621923}}^1$

素因数の和:621968

約数の個数: 16

約数和(自身を含む): 1343355840

約数和(自身を除く): 351388655

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 621923, 3109615, 6841153, 18035767, 34205765, 90178835, 198393437, 991967185]

約数ペア:

[(1, 991967185), (5, 198393437), (11, 90178835), (29, 34205765), (55, 18035767), (145, 6841153), (319, 3109615), (1595, 621923)]