20405358

素因数分解:

$2^1\times 3^4\times {\mathrm{125959}}^1$

素因数の和:125973

約数の個数: 20

約数和(自身を含む): 45723480

約数和(自身を除く): 25318122

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 125959, 251918, 377877, 755754, 1133631, 2267262, 3400893, 6801786, 10202679, 20405358]

約数ペア:

[(1, 20405358), (2, 10202679), (3, 6801786), (6, 3400893), (9, 2267262), (18, 1133631), (27, 755754), (54, 377877), (81, 251918), (162, 125959)]