221371839

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{630689}}^1$

素因数の和:630711

約数の個数: 16

約数和(自身を含む): 353186400

約数和(自身を除く): 131814561

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 630689, 1892067, 5676201, 8198957, 17028603, 24596871, 73790613, 221371839]

約数ペア:

[(1, 221371839), (3, 73790613), (9, 24596871), (13, 17028603), (27, 8198957), (39, 5676201), (117, 1892067), (351, 630689)]