291230289

素因数分解:

$3^3\times 7^1\times {\mathrm{1540901}}^1$

素因数の和:1540917

約数の個数: 16

約数和(自身を含む): 493088640

約数和(自身を除く): 201858351

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1540901, 4622703, 10786307, 13868109, 32358921, 41604327, 97076763, 291230289]

約数ペア:

[(1, 291230289), (3, 97076763), (7, 41604327), (9, 32358921), (21, 13868109), (27, 10786307), (63, 4622703), (189, 1540901)]