21688150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{839}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 23308970

約数列:

[1, 2, 5, 10, 11, 22, 25, 47, 50, 55, 94, 110, 235, 275, 470, 517, 550, 839, 1034, 1175, 1678, 2350, 2585, 4195, 5170, 8390, 9229, 12925, 18458, 20975, 25850, 39433, 41950, 46145, 78866, 92290, 197165, 230725, 394330, 433763, 461450, 867526, 985825, 1971650, 2168815, 4337630, 10844075, 21688150]

約数ペア:

[(1, 21688150), (2, 10844075), (5, 4337630), (10, 2168815), (11, 1971650), (22, 985825), (25, 867526), (47, 461450), (50, 433763), (55, 394330), (94, 230725), (110, 197165), (235, 92290), (275, 78866), (470, 46145), (517, 41950), (550, 39433), (839, 25850), (1034, 20975), (1175, 18458), (1678, 12925), (2350, 9229), (2585, 8390), (4195, 5170)]