20388195

素因数分解:

$3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2713}}^1$

素因数の和:2891

約数の個数: 24

約数和(自身を含む): 35564256

約数和(自身を除く): 15176061

約数列:

[1, 3, 5, 9, 15, 45, 167, 501, 835, 1503, 2505, 2713, 7515, 8139, 13565, 24417, 40695, 122085, 453071, 1359213, 2265355, 4077639, 6796065, 20388195]

約数ペア:

[(1, 20388195), (3, 6796065), (5, 4077639), (9, 2265355), (15, 1359213), (45, 453071), (167, 122085), (501, 40695), (835, 24417), (1503, 13565), (2505, 8139), (2713, 7515)]