221255979

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{17021}}^1$

素因数の和:17650

約数の個数: 16

約数和(自身を含む): 337716480

約数和(自身を除く): 116460501

約数列:

[1, 3, 7, 21, 619, 1857, 4333, 12999, 17021, 51063, 119147, 357441, 10535999, 31607997, 73751993, 221255979]

約数ペア:

[(1, 221255979), (3, 73751993), (7, 31607997), (21, 10535999), (619, 357441), (1857, 119147), (4333, 51063), (12999, 17021)]