221453995

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 308699136

約数和(自身を除く): 87245141

約数列:

[1, 5, 7, 35, 157, 191, 211, 785, 955, 1055, 1099, 1337, 1477, 5495, 6685, 7385, 29987, 33127, 40301, 149935, 165635, 201505, 209909, 231889, 282107, 1049545, 1159445, 1410535, 6327257, 31636285, 44290799, 221453995]

約数ペア:

[(1, 221453995), (5, 44290799), (7, 31636285), (35, 6327257), (157, 1410535), (191, 1159445), (211, 1049545), (785, 282107), (955, 231889), (1055, 209909), (1099, 201505), (1337, 165635), (1477, 149935), (5495, 40301), (6685, 33127), (7385, 29987)]