209220739

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{6703}}^1$

素因数の和:6744

約数の個数: 20

約数和(自身を含む): 262890656

約数和(自身を除く): 53669917

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 6703, 31213, 46921, 87139, 328447, 609973, 2299129, 4269811, 16093903, 29888677, 209220739]

約数ペア:

[(1, 209220739), (7, 29888677), (13, 16093903), (49, 4269811), (91, 2299129), (343, 609973), (637, 328447), (2401, 87139), (4459, 46921), (6703, 31213)]