21754777

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 24735744

約数和(自身を除く): 2980967

約数列:

[1, 11, 31, 131, 341, 487, 1441, 4061, 5357, 15097, 44671, 63797, 166067, 701767, 1977707, 21754777]

約数ペア:

[(1, 21754777), (11, 1977707), (31, 701767), (131, 166067), (341, 63797), (487, 44671), (1441, 15097), (4061, 5357)]