221409891

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{2053}}^1$

素因数の和:2603

約数の個数: 24

約数和(自身を含む): 334522656

約数和(自身を除く): 113112765

約数列:

[1, 3, 9, 23, 69, 207, 521, 1563, 2053, 4689, 6159, 11983, 18477, 35949, 47219, 107847, 141657, 424971, 1069613, 3208839, 9626517, 24601099, 73803297, 221409891]

約数ペア:

[(1, 221409891), (3, 73803297), (9, 24601099), (23, 9626517), (69, 3208839), (207, 1069613), (521, 424971), (1563, 141657), (2053, 107847), (4689, 47219), (6159, 35949), (11983, 18477)]