21022950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10781}}^1$

素因数の和:10809

約数の個数: 48

約数和(自身を含む): 56152656

約数和(自身を除く): 35129706

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10781, 21562, 32343, 53905, 64686, 107810, 140153, 161715, 269525, 280306, 323430, 420459, 539050, 700765, 808575, 840918, 1401530, 1617150, 2102295, 3503825, 4204590, 7007650, 10511475, 21022950]

約数ペア:

[(1, 21022950), (2, 10511475), (3, 7007650), (5, 4204590), (6, 3503825), (10, 2102295), (13, 1617150), (15, 1401530), (25, 840918), (26, 808575), (30, 700765), (39, 539050), (50, 420459), (65, 323430), (75, 280306), (78, 269525), (130, 161715), (150, 140153), (195, 107810), (325, 64686), (390, 53905), (650, 32343), (975, 21562), (1950, 10781)]