20039895

素因数分解:

$3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1997}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 34909056

約数和(自身を除く): 14869161

約数列:

[1, 3, 5, 9, 15, 45, 223, 669, 1115, 1997, 2007, 3345, 5991, 9985, 10035, 17973, 29955, 89865, 445331, 1335993, 2226655, 4007979, 6679965, 20039895]

約数ペア:

[(1, 20039895), (3, 6679965), (5, 4007979), (9, 2226655), (15, 1335993), (45, 445331), (223, 89865), (669, 29955), (1115, 17973), (1997, 10035), (2007, 9985), (3345, 5991)]