1666189

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 16

約数和(自身を含む): 2027520

約数和(自身を除く): 361331

約数列:

[1, 7, 23, 79, 131, 161, 553, 917, 1817, 3013, 10349, 12719, 21091, 72443, 238027, 1666189]

約数ペア:

[(1, 1666189), (7, 238027), (23, 72443), (79, 21091), (131, 12719), (161, 10349), (553, 3013), (917, 1817)]