211666980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{503969}}^1$

素因数の和:503988

約数の個数: 48

約数和(自身を含む): 677335680

約数和(自身を除く): 465668700

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, 503969, 1007938, 1511907, 2015876, 2519845, 3023814, 3527783, 5039690, 6047628, 7055566, 7559535, 10079380, 10583349, 14111132, 15119070, 17638915, 21166698, 30238140, 35277830, 42333396, 52916745, 70555660, 105833490, 211666980]

約数ペア:

[(1, 211666980), (2, 105833490), (3, 70555660), (4, 52916745), (5, 42333396), (6, 35277830), (7, 30238140), (10, 21166698), (12, 17638915), (14, 15119070), (15, 14111132), (20, 10583349), (21, 10079380), (28, 7559535), (30, 7055566), (35, 6047628), (42, 5039690), (60, 3527783), (70, 3023814), (84, 2519845), (105, 2015876), (140, 1511907), (210, 1007938), (420, 503969)]