20865603

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1223}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 31256064

約数和(自身を除く): 10390461

約数列:

[1, 3, 11, 33, 47, 121, 141, 363, 517, 1223, 1551, 3669, 5687, 13453, 17061, 40359, 57481, 147983, 172443, 443949, 632291, 1896873, 6955201, 20865603]

約数ペア:

[(1, 20865603), (3, 6955201), (11, 1896873), (33, 632291), (47, 443949), (121, 172443), (141, 147983), (363, 57481), (517, 40359), (1223, 17061), (1551, 13453), (3669, 5687)]