21799305

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 42142464

約数和(自身を除く): 20343159

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 47, 55, 99, 141, 165, 235, 423, 495, 517, 705, 937, 1551, 2115, 2585, 2811, 4653, 4685, 7755, 8433, 10307, 14055, 23265, 30921, 42165, 44039, 51535, 92763, 132117, 154605, 220195, 396351, 463815, 484429, 660585, 1453287, 1981755, 2422145, 4359861, 7266435, 21799305]

約数ペア:

[(1, 21799305), (3, 7266435), (5, 4359861), (9, 2422145), (11, 1981755), (15, 1453287), (33, 660585), (45, 484429), (47, 463815), (55, 396351), (99, 220195), (141, 154605), (165, 132117), (235, 92763), (423, 51535), (495, 44039), (517, 42165), (705, 30921), (937, 23265), (1551, 14055), (2115, 10307), (2585, 8433), (2811, 7755), (4653, 4685)]