21234955

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 31259520

約数和(自身を除く): 10024565

約数列:

[1, 5, 7, 17, 35, 85, 89, 119, 401, 445, 595, 623, 1513, 2005, 2807, 3115, 6817, 7565, 10591, 14035, 34085, 35689, 47719, 52955, 178445, 238595, 249823, 606713, 1249115, 3033565, 4246991, 21234955]

約数ペア:

[(1, 21234955), (5, 4246991), (7, 3033565), (17, 1249115), (35, 606713), (85, 249823), (89, 238595), (119, 178445), (401, 52955), (445, 47719), (595, 35689), (623, 34085), (1513, 14035), (2005, 10591), (2807, 7565), (3115, 6817)]