21702100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:174

約数の個数: 108

約数和(自身を含む): 56600544

約数和(自身を除く): 34898444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 49, 50, 70, 86, 98, 100, 103, 140, 172, 175, 196, 206, 215, 245, 301, 350, 412, 430, 490, 515, 602, 700, 721, 860, 980, 1030, 1075, 1204, 1225, 1442, 1505, 2060, 2107, 2150, 2450, 2575, 2884, 3010, 3605, 4214, 4300, 4429, 4900, 5047, 5150, 6020, 7210, 7525, 8428, 8858, 10094, 10300, 10535, 14420, 15050, 17716, 18025, 20188, 21070, 22145, 25235, 30100, 31003, 36050, 42140, 44290, 50470, 52675, 62006, 72100, 88580, 100940, 105350, 110725, 124012, 126175, 155015, 210700, 217021, 221450, 252350, 310030, 434042, 442900, 504700, 620060, 775075, 868084, 1085105, 1550150, 2170210, 3100300, 4340420, 5425525, 10851050, 21702100]

約数ペア:

[(1, 21702100), (2, 10851050), (4, 5425525), (5, 4340420), (7, 3100300), (10, 2170210), (14, 1550150), (20, 1085105), (25, 868084), (28, 775075), (35, 620060), (43, 504700), (49, 442900), (50, 434042), (70, 310030), (86, 252350), (98, 221450), (100, 217021), (103, 210700), (140, 155015), (172, 126175), (175, 124012), (196, 110725), (206, 105350), (215, 100940), (245, 88580), (301, 72100), (350, 62006), (412, 52675), (430, 50470), (490, 44290), (515, 42140), (602, 36050), (700, 31003), (721, 30100), (860, 25235), (980, 22145), (1030, 21070), (1075, 20188), (1204, 18025), (1225, 17716), (1442, 15050), (1505, 14420), (2060, 10535), (2107, 10300), (2150, 10094), (2450, 8858), (2575, 8428), (2884, 7525), (3010, 7210), (3605, 6020), (4214, 5150), (4300, 5047), (4429, 4900)]