21064530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 54183168

約数和(自身を除く): 33118638

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 103, 170, 206, 255, 309, 401, 510, 515, 618, 802, 1030, 1203, 1545, 1751, 2005, 2406, 3090, 3502, 4010, 5253, 6015, 6817, 8755, 10506, 12030, 13634, 17510, 20451, 26265, 34085, 40902, 41303, 52530, 68170, 82606, 102255, 123909, 204510, 206515, 247818, 413030, 619545, 702151, 1239090, 1404302, 2106453, 3510755, 4212906, 7021510, 10532265, 21064530]

約数ペア:

[(1, 21064530), (2, 10532265), (3, 7021510), (5, 4212906), (6, 3510755), (10, 2106453), (15, 1404302), (17, 1239090), (30, 702151), (34, 619545), (51, 413030), (85, 247818), (102, 206515), (103, 204510), (170, 123909), (206, 102255), (255, 82606), (309, 68170), (401, 52530), (510, 41303), (515, 40902), (618, 34085), (802, 26265), (1030, 20451), (1203, 17510), (1545, 13634), (1751, 12030), (2005, 10506), (2406, 8755), (3090, 6817), (3502, 6015), (4010, 5253)]