278327991

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1\times {\mathrm{6121}}^1$

素因数の和:6806

約数の個数: 16

約数和(自身を含む): 387889920

約数和(自身を除く): 109561929

約数列:

[1, 3, 23, 69, 659, 1977, 6121, 15157, 18363, 45471, 140783, 422349, 4033739, 12101217, 92775997, 278327991]

約数ペア:

[(1, 278327991), (3, 92775997), (23, 12101217), (69, 4033739), (659, 422349), (1977, 140783), (6121, 45471), (15157, 18363)]