21285894

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{10343}}^1$

素因数の和:10369

約数の個数: 32

約数和(自身を含む): 49651200

約数和(自身を除く): 28365306

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 10343, 20686, 31029, 62058, 72401, 144802, 217203, 434406, 506807, 1013614, 1520421, 3040842, 3547649, 7095298, 10642947, 21285894]

約数ペア:

[(1, 21285894), (2, 10642947), (3, 7095298), (6, 3547649), (7, 3040842), (14, 1520421), (21, 1013614), (42, 506807), (49, 434406), (98, 217203), (147, 144802), (294, 72401), (343, 62058), (686, 31029), (1029, 20686), (2058, 10343)]