21211260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50503}}^1$

素因数の和:50522

約数の個数: 48

約数和(自身を含む): 67877376

約数和(自身を除く): 46666116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50503, 101006, 151509, 202012, 252515, 303018, 353521, 505030, 606036, 707042, 757545, 1010060, 1060563, 1414084, 1515090, 1767605, 2121126, 3030180, 3535210, 4242252, 5302815, 7070420, 10605630, 21211260]

約数ペア:

[(1, 21211260), (2, 10605630), (3, 7070420), (4, 5302815), (5, 4242252), (6, 3535210), (7, 3030180), (10, 2121126), (12, 1767605), (14, 1515090), (15, 1414084), (20, 1060563), (21, 1010060), (28, 757545), (30, 707042), (35, 606036), (42, 505030), (60, 353521), (70, 303018), (84, 252515), (105, 202012), (140, 151509), (210, 101006), (420, 50503)]