20684556

素因数分解:

$2^2\times 3^2\times {\mathrm{443}}^1\times {\mathrm{1297}}^1$

素因数の和:1750

約数の個数: 36

約数和(自身を含む): 52444392

約数和(自身を除く): 31759836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 443, 886, 1297, 1329, 1772, 2594, 2658, 3891, 3987, 5188, 5316, 7782, 7974, 11673, 15564, 15948, 23346, 46692, 574571, 1149142, 1723713, 2298284, 3447426, 5171139, 6894852, 10342278, 20684556]

約数ペア:

[(1, 20684556), (2, 10342278), (3, 6894852), (4, 5171139), (6, 3447426), (9, 2298284), (12, 1723713), (18, 1149142), (36, 574571), (443, 46692), (886, 23346), (1297, 15948), (1329, 15564), (1772, 11673), (2594, 7974), (2658, 7782), (3891, 5316), (3987, 5188)]