211758540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{504187}}^1$

素因数の和:504206

約数の個数: 48

約数和(自身を含む): 677628672

約数和(自身を除く): 465870132

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, 504187, 1008374, 1512561, 2016748, 2520935, 3025122, 3529309, 5041870, 6050244, 7058618, 7562805, 10083740, 10587927, 14117236, 15125610, 17646545, 21175854, 30251220, 35293090, 42351708, 52939635, 70586180, 105879270, 211758540]

約数ペア:

[(1, 211758540), (2, 105879270), (3, 70586180), (4, 52939635), (5, 42351708), (6, 35293090), (7, 30251220), (10, 21175854), (12, 17646545), (14, 15125610), (15, 14117236), (20, 10587927), (21, 10083740), (28, 7562805), (30, 7058618), (35, 6050244), (42, 5041870), (60, 3529309), (70, 3025122), (84, 2520935), (105, 2016748), (140, 1512561), (210, 1008374), (420, 504187)]