21053000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 50684400

約数和(自身を除く): 29631400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 370, 500, 569, 740, 925, 1000, 1138, 1480, 1850, 2276, 2845, 3700, 4552, 4625, 5690, 7400, 9250, 11380, 14225, 18500, 21053, 22760, 28450, 37000, 42106, 56900, 71125, 84212, 105265, 113800, 142250, 168424, 210530, 284500, 421060, 526325, 569000, 842120, 1052650, 2105300, 2631625, 4210600, 5263250, 10526500, 21053000]

約数ペア:

[(1, 21053000), (2, 10526500), (4, 5263250), (5, 4210600), (8, 2631625), (10, 2105300), (20, 1052650), (25, 842120), (37, 569000), (40, 526325), (50, 421060), (74, 284500), (100, 210530), (125, 168424), (148, 142250), (185, 113800), (200, 105265), (250, 84212), (296, 71125), (370, 56900), (500, 42106), (569, 37000), (740, 28450), (925, 22760), (1000, 21053), (1138, 18500), (1480, 14225), (1850, 11380), (2276, 9250), (2845, 7400), (3700, 5690), (4552, 4625)]