20213396

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21921004

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 109, 148, 179, 218, 259, 358, 436, 518, 716, 763, 1036, 1253, 1526, 2506, 3052, 4033, 5012, 6623, 8066, 13246, 16132, 19511, 26492, 28231, 39022, 46361, 56462, 78044, 92722, 112924, 136577, 185444, 273154, 546308, 721907, 1443814, 2887628, 5053349, 10106698, 20213396]

約数ペア:

[(1, 20213396), (2, 10106698), (4, 5053349), (7, 2887628), (14, 1443814), (28, 721907), (37, 546308), (74, 273154), (109, 185444), (148, 136577), (179, 112924), (218, 92722), (259, 78044), (358, 56462), (436, 46361), (518, 39022), (716, 28231), (763, 26492), (1036, 19511), (1253, 16132), (1526, 13246), (2506, 8066), (3052, 6623), (4033, 5012)]