21402303

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1699}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 12869697

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1699, 4199, 5097, 12597, 22087, 28883, 32281, 66261, 86649, 96843, 375479, 419653, 548777, 1126437, 1258959, 1646331, 7134101, 21402303]

約数ペア:

[(1, 21402303), (3, 7134101), (13, 1646331), (17, 1258959), (19, 1126437), (39, 548777), (51, 419653), (57, 375479), (221, 96843), (247, 86649), (323, 66261), (663, 32281), (741, 28883), (969, 22087), (1699, 12597), (4199, 5097)]