178874241

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1019}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 294282240

約数和(自身を除く): 115407999

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 643, 1019, 1929, 3057, 4501, 7133, 8359, 13247, 13503, 21399, 25077, 39741, 58513, 92729, 175539, 278187, 655217, 1965651, 4586519, 8517821, 13759557, 25553463, 59624747, 178874241]

約数ペア:

[(1, 178874241), (3, 59624747), (7, 25553463), (13, 13759557), (21, 8517821), (39, 4586519), (91, 1965651), (273, 655217), (643, 278187), (1019, 175539), (1929, 92729), (3057, 58513), (4501, 39741), (7133, 25077), (8359, 21399), (13247, 13503)]