20642229

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 11815371

約数列:

[1, 3, 9, 27, 29, 41, 87, 123, 261, 369, 643, 783, 1107, 1189, 1929, 3567, 5787, 10701, 17361, 18647, 26363, 32103, 55941, 79089, 167823, 237267, 503469, 711801, 764527, 2293581, 6880743, 20642229]

約数ペア:

[(1, 20642229), (3, 6880743), (9, 2293581), (27, 764527), (29, 711801), (41, 503469), (87, 237267), (123, 167823), (261, 79089), (369, 55941), (643, 32103), (783, 26363), (1107, 18647), (1189, 17361), (1929, 10701), (3567, 5787)]