217870419

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{881}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 332506944

約数和(自身を除く): 114636525

約数列:

[1, 3, 13, 17, 39, 51, 221, 373, 663, 881, 1119, 2643, 4849, 6341, 11453, 14547, 14977, 19023, 34359, 44931, 82433, 194701, 247299, 328613, 584103, 985839, 4271969, 5586421, 12815907, 16759263, 72623473, 217870419]

約数ペア:

[(1, 217870419), (3, 72623473), (13, 16759263), (17, 12815907), (39, 5586421), (51, 4271969), (221, 985839), (373, 584103), (663, 328613), (881, 247299), (1119, 194701), (2643, 82433), (4849, 44931), (6341, 34359), (11453, 19023), (14547, 14977)]