20154729

素因数分解:

$3^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{821}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 31485888

約数和(自身を除く): 11331159

約数列:

[1, 3, 7, 21, 49, 147, 167, 501, 821, 1169, 2463, 3507, 5747, 8183, 17241, 24549, 40229, 120687, 137107, 411321, 959749, 2879247, 6718243, 20154729]

約数ペア:

[(1, 20154729), (3, 6718243), (7, 2879247), (21, 959749), (49, 411321), (147, 137107), (167, 120687), (501, 40229), (821, 24549), (1169, 17241), (2463, 8183), (3507, 5747)]