207171909

素因数分解:

$3^2\times 7^1\times {\mathrm{1213}}^1\times {\mathrm{2711}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 342406272

約数和(自身を除く): 135234363

約数列:

[1, 3, 7, 9, 21, 63, 1213, 2711, 3639, 8133, 8491, 10917, 18977, 24399, 25473, 56931, 76419, 170793, 3288443, 9865329, 23019101, 29595987, 69057303, 207171909]

約数ペア:

[(1, 207171909), (3, 69057303), (7, 29595987), (9, 23019101), (21, 9865329), (63, 3288443), (1213, 170793), (2711, 76419), (3639, 56931), (8133, 25473), (8491, 24399), (10917, 18977)]