1988189

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:316

約数の個数: 16

約数和(自身を含む): 2426112

約数和(自身を除く): 437923

約数列:

[1, 7, 23, 53, 161, 233, 371, 1219, 1631, 5359, 8533, 12349, 37513, 86443, 284027, 1988189]

約数ペア:

[(1, 1988189), (7, 284027), (23, 86443), (53, 37513), (161, 12349), (233, 8533), (371, 5359), (1219, 1631)]