260721321

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{185303}}^1$

素因数の和:185380

約数の個数: 16

約数和(自身を含む): 403221504

約数和(自身を除く): 142500183

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 185303, 555909, 1297121, 3891363, 12415301, 37245903, 86907107, 260721321]

約数ペア:

[(1, 260721321), (3, 86907107), (7, 37245903), (21, 12415301), (67, 3891363), (201, 1297121), (469, 555909), (1407, 185303)]