19893137

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1384

約数の個数: 16

約数和(自身を含む): 23034240

約数和(自身を除く): 3141103

約数列:

[1, 11, 23, 61, 253, 671, 1289, 1403, 14179, 15433, 29647, 78629, 326117, 864919, 1808467, 19893137]

約数ペア:

[(1, 19893137), (11, 1808467), (23, 864919), (61, 326117), (253, 78629), (671, 29647), (1289, 15433), (1403, 14179)]