21323505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6551}}^1$

素因数の和:6597

約数の個数: 32

約数和(自身を含む): 40255488

約数和(自身を除く): 18931983

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6551, 19653, 32755, 45857, 98265, 137571, 203081, 229285, 609243, 687855, 1015405, 1421567, 3046215, 4264701, 7107835, 21323505]

約数ペア:

[(1, 21323505), (3, 7107835), (5, 4264701), (7, 3046215), (15, 1421567), (21, 1015405), (31, 687855), (35, 609243), (93, 229285), (105, 203081), (155, 137571), (217, 98265), (465, 45857), (651, 32755), (1085, 19653), (3255, 6551)]