19928133

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 31564800

約数和(自身を除く): 11636667

約数列:

[1, 3, 9, 27, 29, 31, 87, 93, 261, 279, 783, 821, 837, 899, 2463, 2697, 7389, 8091, 22167, 23809, 24273, 25451, 71427, 76353, 214281, 229059, 642843, 687177, 738079, 2214237, 6642711, 19928133]

約数ペア:

[(1, 19928133), (3, 6642711), (9, 2214237), (27, 738079), (29, 687177), (31, 642843), (87, 229059), (93, 214281), (261, 76353), (279, 71427), (783, 25451), (821, 24273), (837, 23809), (899, 22167), (2463, 8091), (2697, 7389)]