21116000

素因数分解:

$2^5\times 5^3\times {\mathrm{5279}}^1$

素因数の和:5304

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30775840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5279, 10558, 21116, 26395, 42232, 52790, 84464, 105580, 131975, 168928, 211160, 263950, 422320, 527900, 659875, 844640, 1055800, 1319750, 2111600, 2639500, 4223200, 5279000, 10558000, 21116000]

約数ペア:

[(1, 21116000), (2, 10558000), (4, 5279000), (5, 4223200), (8, 2639500), (10, 2111600), (16, 1319750), (20, 1055800), (25, 844640), (32, 659875), (40, 527900), (50, 422320), (80, 263950), (100, 211160), (125, 168928), (160, 131975), (200, 105580), (250, 84464), (400, 52790), (500, 42232), (800, 26395), (1000, 21116), (2000, 10558), (4000, 5279)]