221821713

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{432401}}^1$

素因数の和:432429

約数の個数: 16

約数和(自身を含む): 345921600

約数和(自身を除く): 124099887

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 432401, 1297203, 3891609, 8215619, 11674827, 24646857, 73940571, 221821713]

約数ペア:

[(1, 221821713), (3, 73940571), (9, 24646857), (19, 11674827), (27, 8215619), (57, 3891609), (171, 1297203), (513, 432401)]