21465955

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1423}}^1$

素因数の和:1866

約数の個数: 16

約数和(自身を含む): 29528064

約数和(自身を除く): 8062109

約数列:

[1, 5, 7, 35, 431, 1423, 2155, 3017, 7115, 9961, 15085, 49805, 613313, 3066565, 4293191, 21465955]

約数ペア:

[(1, 21465955), (5, 4293191), (7, 3066565), (35, 613313), (431, 49805), (1423, 15085), (2155, 9961), (3017, 7115)]