21427700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4373}}^1$

素因数の和:4401

約数の個数: 54

約数和(自身を含む): 54102006

約数和(自身を除く): 32674306

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4373, 4900, 8746, 17492, 21865, 30611, 43730, 61222, 87460, 109325, 122444, 153055, 214277, 218650, 306110, 428554, 437300, 612220, 765275, 857108, 1071385, 1530550, 2142770, 3061100, 4285540, 5356925, 10713850, 21427700]

約数ペア:

[(1, 21427700), (2, 10713850), (4, 5356925), (5, 4285540), (7, 3061100), (10, 2142770), (14, 1530550), (20, 1071385), (25, 857108), (28, 765275), (35, 612220), (49, 437300), (50, 428554), (70, 306110), (98, 218650), (100, 214277), (140, 153055), (175, 122444), (196, 109325), (245, 87460), (350, 61222), (490, 43730), (700, 30611), (980, 21865), (1225, 17492), (2450, 8746), (4373, 4900)]