128972613

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1609}}^1$

素因数の和:1977

約数の個数: 32

約数和(自身を含む): 215147520

約数和(自身を除く): 86174907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 347, 1041, 1609, 2429, 3817, 4827, 7287, 11263, 11451, 17699, 26719, 33789, 53097, 80157, 123893, 371679, 558323, 1674969, 3908261, 6141553, 11724783, 18424659, 42990871, 128972613]

約数ペア:

[(1, 128972613), (3, 42990871), (7, 18424659), (11, 11724783), (21, 6141553), (33, 3908261), (77, 1674969), (231, 558323), (347, 371679), (1041, 123893), (1609, 80157), (2429, 53097), (3817, 33789), (4827, 26719), (7287, 17699), (11263, 11451)]