21133021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{439}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 27251840

約数和(自身を除く): 6118819

約数列:

[1, 7, 13, 23, 91, 161, 299, 439, 529, 2093, 3073, 3703, 5707, 6877, 10097, 39949, 48139, 70679, 131261, 232231, 918827, 1625617, 3019003, 21133021]

約数ペア:

[(1, 21133021), (7, 3019003), (13, 1625617), (23, 918827), (91, 232231), (161, 131261), (299, 70679), (439, 48139), (529, 39949), (2093, 10097), (3073, 6877), (3703, 5707)]