21986409

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{4007}}^1$

素因数の和:4100

約数の個数: 16

約数和(自身を含む): 30781440

約数和(自身を除く): 8795031

約数列:

[1, 3, 31, 59, 93, 177, 1829, 4007, 5487, 12021, 124217, 236413, 372651, 709239, 7328803, 21986409]

約数ペア:

[(1, 21986409), (3, 7328803), (31, 709239), (59, 372651), (93, 236413), (177, 124217), (1829, 12021), (4007, 5487)]