21093171

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{967}}^1$

素因数の和:1642

約数の個数: 16

約数和(自身を含む): 30759168

約数和(自身を除く): 9665997

約数列:

[1, 3, 11, 33, 661, 967, 1983, 2901, 7271, 10637, 21813, 31911, 639187, 1917561, 7031057, 21093171]

約数ペア:

[(1, 21093171), (3, 7031057), (11, 1917561), (33, 639187), (661, 31911), (967, 21813), (1983, 10637), (2901, 7271)]