21348062020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{70451}}^1$

素因数の和:70708

約数の個数: 48

約数和(自身を含む): 45568353600

約数和(自身を除く): 24220291580

約数列:

[1, 2, 4, 5, 10, 20, 109, 139, 218, 278, 436, 545, 556, 695, 1090, 1390, 2180, 2780, 15151, 30302, 60604, 70451, 75755, 140902, 151510, 281804, 303020, 352255, 704510, 1409020, 7679159, 9792689, 15358318, 19585378, 30716636, 38395795, 39170756, 48963445, 76791590, 97926890, 153583180, 195853780, 1067403101, 2134806202, 4269612404, 5337015505, 10674031010, 21348062020]

約数ペア:

[(1, 21348062020), (2, 10674031010), (4, 5337015505), (5, 4269612404), (10, 2134806202), (20, 1067403101), (109, 195853780), (139, 153583180), (218, 97926890), (278, 76791590), (436, 48963445), (545, 39170756), (556, 38395795), (695, 30716636), (1090, 19585378), (1390, 15358318), (2180, 9792689), (2780, 7679159), (15151, 1409020), (30302, 704510), (60604, 352255), (70451, 303020), (75755, 281804), (140902, 151510)]