2891421

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{1901}}^1$

素因数の和:1933

約数の個数: 18

約数和(自身を含む): 4524858

約数和(自身を除く): 1633437

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 1901, 5703, 17109, 24713, 74139, 222417, 321269, 963807, 2891421]

約数ペア:

[(1, 2891421), (3, 963807), (9, 321269), (13, 222417), (39, 74139), (117, 24713), (169, 17109), (507, 5703), (1521, 1901)]