21253356

素因数分解:

$2^2\times 3^2\times {\mathrm{419}}^1\times {\mathrm{1409}}^1$

素因数の和:1838

約数の個数: 36

約数和(自身を含む): 53890200

約数和(自身を除く): 32636844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 419, 838, 1257, 1409, 1676, 2514, 2818, 3771, 4227, 5028, 5636, 7542, 8454, 12681, 15084, 16908, 25362, 50724, 590371, 1180742, 1771113, 2361484, 3542226, 5313339, 7084452, 10626678, 21253356]

約数ペア:

[(1, 21253356), (2, 10626678), (3, 7084452), (4, 5313339), (6, 3542226), (9, 2361484), (12, 1771113), (18, 1180742), (36, 590371), (419, 50724), (838, 25362), (1257, 16908), (1409, 15084), (1676, 12681), (2514, 8454), (2818, 7542), (3771, 5636), (4227, 5028)]