205005171

素因数分解:

$3^1\times 7^2\times {\mathrm{347}}^1\times {\mathrm{4019}}^1$

素因数の和:4383

約数の個数: 24

約数和(自身を含む): 318962880

約数和(自身を除く): 113957709

約数列:

[1, 3, 7, 21, 49, 147, 347, 1041, 2429, 4019, 7287, 12057, 17003, 28133, 51009, 84399, 196931, 590793, 1394593, 4183779, 9762151, 29286453, 68335057, 205005171]

約数ペア:

[(1, 205005171), (3, 68335057), (7, 29286453), (21, 9762151), (49, 4183779), (147, 1394593), (347, 590793), (1041, 196931), (2429, 84399), (4019, 51009), (7287, 28133), (12057, 17003)]