291213974

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{72047}}^1$

素因数の和:72139

約数の個数: 16

約数和(自身を含む): 456496128

約数和(自身を除く): 165282154

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 72047, 144094, 3098021, 3386209, 6196042, 6772418, 145606987, 291213974]

約数ペア:

[(1, 291213974), (2, 145606987), (43, 6772418), (47, 6196042), (86, 3386209), (94, 3098021), (2021, 144094), (4042, 72047)]