21873775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1033}}^1$

素因数の和:1072

約数の個数: 36

約数和(自身を含む): 34105456

約数和(自身を除く): 12231681

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 1033, 1925, 3025, 4235, 5165, 7231, 11363, 21175, 25825, 36155, 56815, 79541, 124993, 180775, 284075, 397705, 624965, 874951, 1988525, 3124825, 4374755, 21873775]

約数ペア:

[(1, 21873775), (5, 4374755), (7, 3124825), (11, 1988525), (25, 874951), (35, 624965), (55, 397705), (77, 284075), (121, 180775), (175, 124993), (275, 79541), (385, 56815), (605, 36155), (847, 25825), (1033, 21175), (1925, 11363), (3025, 7231), (4235, 5165)]