21943257

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 35487744

約数和(自身を除く): 13544487

約数列:

[1, 3, 7, 21, 31, 37, 93, 111, 217, 259, 651, 777, 911, 1147, 2733, 3441, 6377, 8029, 19131, 24087, 28241, 33707, 84723, 101121, 197687, 235949, 593061, 707847, 1044917, 3134751, 7314419, 21943257]

約数ペア:

[(1, 21943257), (3, 7314419), (7, 3134751), (21, 1044917), (31, 707847), (37, 593061), (93, 235949), (111, 197687), (217, 101121), (259, 84723), (651, 33707), (777, 28241), (911, 24087), (1147, 19131), (2733, 8029), (3441, 6377)]