21283900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1759}}^1$

素因数の和:1795

約数の個数: 54

約数和(自身を含む): 50795360

約数和(自身を除く): 29511460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 1759, 2420, 3025, 3518, 6050, 7036, 8795, 12100, 17590, 19349, 35180, 38698, 43975, 77396, 87950, 96745, 175900, 193490, 212839, 386980, 425678, 483725, 851356, 967450, 1064195, 1934900, 2128390, 4256780, 5320975, 10641950, 21283900]

約数ペア:

[(1, 21283900), (2, 10641950), (4, 5320975), (5, 4256780), (10, 2128390), (11, 1934900), (20, 1064195), (22, 967450), (25, 851356), (44, 483725), (50, 425678), (55, 386980), (100, 212839), (110, 193490), (121, 175900), (220, 96745), (242, 87950), (275, 77396), (484, 43975), (550, 38698), (605, 35180), (1100, 19349), (1210, 17590), (1759, 12100), (2420, 8795), (3025, 7036), (3518, 6050)]