21072100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30103}}^1$

素因数の和:30124

約数の個数: 36

約数和(自身を含む): 52260544

約数和(自身を除く): 31188444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30103, 60206, 120412, 150515, 210721, 301030, 421442, 602060, 752575, 842884, 1053605, 1505150, 2107210, 3010300, 4214420, 5268025, 10536050, 21072100]

約数ペア:

[(1, 21072100), (2, 10536050), (4, 5268025), (5, 4214420), (7, 3010300), (10, 2107210), (14, 1505150), (20, 1053605), (25, 842884), (28, 752575), (35, 602060), (50, 421442), (70, 301030), (100, 210721), (140, 150515), (175, 120412), (350, 60206), (700, 30103)]