21118000

素因数分解:

$2^4\times 5^3\times {\mathrm{10559}}^1$

素因数の和:10582

約数の個数: 40

約数和(自身を含む): 51068160

約数和(自身を除く): 29950160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10559, 21118, 42236, 52795, 84472, 105590, 168944, 211180, 263975, 422360, 527950, 844720, 1055900, 1319875, 2111800, 2639750, 4223600, 5279500, 10559000, 21118000]

約数ペア:

[(1, 21118000), (2, 10559000), (4, 5279500), (5, 4223600), (8, 2639750), (10, 2111800), (16, 1319875), (20, 1055900), (25, 844720), (40, 527950), (50, 422360), (80, 263975), (100, 211180), (125, 168944), (200, 105590), (250, 84472), (400, 52795), (500, 42236), (1000, 21118), (2000, 10559)]