18647638

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{7477}}^1$

素因数の和:7551

約数の個数: 16

約数和(自身を含む): 29612880

約数和(自身を除く): 10965242

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 7477, 14954, 216833, 321511, 433666, 643022, 9323819, 18647638]

約数ペア:

[(1, 18647638), (2, 9323819), (29, 643022), (43, 433666), (58, 321511), (86, 216833), (1247, 14954), (2494, 7477)]