19989270

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31729}}^1$

素因数の和:31749

約数の個数: 48

約数和(自身を含む): 59398560

約数和(自身を除く): 39409290

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31729, 63458, 95187, 158645, 190374, 222103, 285561, 317290, 444206, 475935, 571122, 666309, 951870, 1110515, 1332618, 1427805, 1998927, 2221030, 2855610, 3331545, 3997854, 6663090, 9994635, 19989270]

約数ペア:

[(1, 19989270), (2, 9994635), (3, 6663090), (5, 3997854), (6, 3331545), (7, 2855610), (9, 2221030), (10, 1998927), (14, 1427805), (15, 1332618), (18, 1110515), (21, 951870), (30, 666309), (35, 571122), (42, 475935), (45, 444206), (63, 317290), (70, 285561), (90, 222103), (105, 190374), (126, 158645), (210, 95187), (315, 63458), (630, 31729)]