21236000

素因数分解:

$2^5\times 5^3\times {\mathrm{5309}}^1$

素因数の和:5334

約数の個数: 48

約数和(自身を含む): 52186680

約数和(自身を除く): 30950680

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, 5309, 10618, 21236, 26545, 42472, 53090, 84944, 106180, 132725, 169888, 212360, 265450, 424720, 530900, 663625, 849440, 1061800, 1327250, 2123600, 2654500, 4247200, 5309000, 10618000, 21236000]

約数ペア:

[(1, 21236000), (2, 10618000), (4, 5309000), (5, 4247200), (8, 2654500), (10, 2123600), (16, 1327250), (20, 1061800), (25, 849440), (32, 663625), (40, 530900), (50, 424720), (80, 265450), (100, 212360), (125, 169888), (160, 132725), (200, 106180), (250, 84944), (400, 53090), (500, 42472), (800, 26545), (1000, 21236), (2000, 10618), (4000, 5309)]