21462140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1847}}^1$

素因数の和:1946

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 30695812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 1847, 2324, 2905, 3694, 5810, 7388, 9235, 11620, 12929, 18470, 25858, 36940, 51716, 64645, 129290, 153301, 258580, 306602, 613204, 766505, 1073107, 1533010, 2146214, 3066020, 4292428, 5365535, 10731070, 21462140]

約数ペア:

[(1, 21462140), (2, 10731070), (4, 5365535), (5, 4292428), (7, 3066020), (10, 2146214), (14, 1533010), (20, 1073107), (28, 766505), (35, 613204), (70, 306602), (83, 258580), (140, 153301), (166, 129290), (332, 64645), (415, 51716), (581, 36940), (830, 25858), (1162, 18470), (1660, 12929), (1847, 11620), (2324, 9235), (2905, 7388), (3694, 5810)]