19125729

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1450

約数の個数: 36

約数和(自身を含む): 33196800

約数和(自身を除く): 14071071

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 441, 651, 1399, 1519, 1953, 4197, 4557, 9793, 12591, 13671, 29379, 43369, 68551, 88137, 130107, 205653, 303583, 390321, 616959, 910749, 2125081, 2732247, 6375243, 19125729]

約数ペア:

[(1, 19125729), (3, 6375243), (7, 2732247), (9, 2125081), (21, 910749), (31, 616959), (49, 390321), (63, 303583), (93, 205653), (147, 130107), (217, 88137), (279, 68551), (441, 43369), (651, 29379), (1399, 13671), (1519, 12591), (1953, 9793), (4197, 4557)]