21806244

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{1481}}^1$

素因数の和:1900

約数の個数: 36

約数和(自身を含む): 55293420

約数和(自身を除く): 33487176

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 818, 1227, 1481, 1636, 2454, 2962, 3681, 4443, 4908, 5924, 7362, 8886, 13329, 14724, 17772, 26658, 53316, 605729, 1211458, 1817187, 2422916, 3634374, 5451561, 7268748, 10903122, 21806244]

約数ペア:

[(1, 21806244), (2, 10903122), (3, 7268748), (4, 5451561), (6, 3634374), (9, 2422916), (12, 1817187), (18, 1211458), (36, 605729), (409, 53316), (818, 26658), (1227, 17772), (1481, 14724), (1636, 13329), (2454, 8886), (2962, 7362), (3681, 5924), (4443, 4908)]