21420816

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{26251}}^1$

素因数の和:26279

約数の個数: 40

約数和(自身を含む): 58594464

約数和(自身を除く): 37173648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 26251, 52502, 78753, 105004, 157506, 210008, 315012, 420016, 446267, 630024, 892534, 1260048, 1338801, 1785068, 2677602, 3570136, 5355204, 7140272, 10710408, 21420816]

約数ペア:

[(1, 21420816), (2, 10710408), (3, 7140272), (4, 5355204), (6, 3570136), (8, 2677602), (12, 1785068), (16, 1338801), (17, 1260048), (24, 892534), (34, 630024), (48, 446267), (51, 420016), (68, 315012), (102, 210008), (136, 157506), (204, 105004), (272, 78753), (408, 52502), (816, 26251)]