19315961

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 5505031

約数列:

[1, 7, 17, 37, 41, 107, 119, 259, 287, 629, 697, 749, 1517, 1819, 3959, 4387, 4403, 4879, 10619, 12733, 25789, 27713, 30709, 67303, 74579, 162319, 180523, 471121, 522053, 1136233, 2759423, 19315961]

約数ペア:

[(1, 19315961), (7, 2759423), (17, 1136233), (37, 522053), (41, 471121), (107, 180523), (119, 162319), (259, 74579), (287, 67303), (629, 30709), (697, 27713), (749, 25789), (1517, 12733), (1819, 10619), (3959, 4879), (4387, 4403)]