21284280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59123}}^1$

素因数の和:59140

約数の個数: 48

約数和(自身を含む): 69175080

約数和(自身を除く): 47890800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59123, 118246, 177369, 236492, 295615, 354738, 472984, 532107, 591230, 709476, 886845, 1064214, 1182460, 1418952, 1773690, 2128428, 2364920, 2660535, 3547380, 4256856, 5321070, 7094760, 10642140, 21284280]

約数ペア:

[(1, 21284280), (2, 10642140), (3, 7094760), (4, 5321070), (5, 4256856), (6, 3547380), (8, 2660535), (9, 2364920), (10, 2128428), (12, 1773690), (15, 1418952), (18, 1182460), (20, 1064214), (24, 886845), (30, 709476), (36, 591230), (40, 532107), (45, 472984), (60, 354738), (72, 295615), (90, 236492), (120, 177369), (180, 118246), (360, 59123)]