393957431

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 480522240

約数和(自身を除く): 86564809

約数列:

[1, 7, 29, 47, 157, 203, 263, 329, 1099, 1363, 1841, 4553, 7379, 7627, 9541, 12361, 31871, 41291, 51653, 53389, 86527, 213991, 289037, 358469, 1197439, 1497937, 1940677, 2509283, 8382073, 13584739, 56279633, 393957431]

約数ペア:

[(1, 393957431), (7, 56279633), (29, 13584739), (47, 8382073), (157, 2509283), (203, 1940677), (263, 1497937), (329, 1197439), (1099, 358469), (1363, 289037), (1841, 213991), (4553, 86527), (7379, 53389), (7627, 51653), (9541, 41291), (12361, 31871)]