21639870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^3\times {\mathrm{701}}^1$

素因数の和:735

約数の個数: 96

約数和(自身を含む): 65707200

約数和(自身を除く): 44067330

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 343, 441, 490, 630, 686, 701, 735, 882, 1029, 1402, 1470, 1715, 2058, 2103, 2205, 3087, 3430, 3505, 4206, 4410, 4907, 5145, 6174, 6309, 7010, 9814, 10290, 10515, 12618, 14721, 15435, 21030, 24535, 29442, 30870, 31545, 34349, 44163, 49070, 63090, 68698, 73605, 88326, 103047, 147210, 171745, 206094, 220815, 240443, 309141, 343490, 441630, 480886, 515235, 618282, 721329, 1030470, 1202215, 1442658, 1545705, 2163987, 2404430, 3091410, 3606645, 4327974, 7213290, 10819935, 21639870]

約数ペア:

[(1, 21639870), (2, 10819935), (3, 7213290), (5, 4327974), (6, 3606645), (7, 3091410), (9, 2404430), (10, 2163987), (14, 1545705), (15, 1442658), (18, 1202215), (21, 1030470), (30, 721329), (35, 618282), (42, 515235), (45, 480886), (49, 441630), (63, 343490), (70, 309141), (90, 240443), (98, 220815), (105, 206094), (126, 171745), (147, 147210), (210, 103047), (245, 88326), (294, 73605), (315, 68698), (343, 63090), (441, 49070), (490, 44163), (630, 34349), (686, 31545), (701, 30870), (735, 29442), (882, 24535), (1029, 21030), (1402, 15435), (1470, 14721), (1715, 12618), (2058, 10515), (2103, 10290), (2205, 9814), (3087, 7010), (3430, 6309), (3505, 6174), (4206, 5145), (4410, 4907)]