21955745

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4513}}^1$

素因数の和:4664

約数の個数: 16

約数和(自身を含む): 30334080

約数和(自身を除く): 8378335

約数列:

[1, 5, 7, 35, 139, 695, 973, 4513, 4865, 22565, 31591, 157955, 627307, 3136535, 4391149, 21955745]

約数ペア:

[(1, 21955745), (5, 4391149), (7, 3136535), (35, 627307), (139, 157955), (695, 31591), (973, 22565), (4513, 4865)]