1001997

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 32

約数和(自身を含む): 1641600

約数和(自身を除く): 639603

約数列:

[1, 3, 9, 17, 27, 37, 51, 59, 111, 153, 177, 333, 459, 531, 629, 999, 1003, 1593, 1887, 2183, 3009, 5661, 6549, 9027, 16983, 19647, 27081, 37111, 58941, 111333, 333999, 1001997]

約数ペア:

[(1, 1001997), (3, 333999), (9, 111333), (17, 58941), (27, 37111), (37, 27081), (51, 19647), (59, 16983), (111, 9027), (153, 6549), (177, 5661), (333, 3009), (459, 2183), (531, 1887), (629, 1593), (999, 1003)]