21017316981

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{5309}}^1\times {\mathrm{14827}}^1$

素因数の和:20228

約数の個数: 16

約数和(自身を含む): 28345204800

約数和(自身を除く): 7327887819

約数列:

[1, 3, 89, 267, 5309, 14827, 15927, 44481, 472501, 1319603, 1417503, 3958809, 78716543, 236149629, 7005772327, 21017316981]

約数ペア:

[(1, 21017316981), (3, 7005772327), (89, 236149629), (267, 78716543), (5309, 3958809), (14827, 1417503), (15927, 1319603), (44481, 472501)]