81291918

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{1109}}^1$

素因数の和:1776

約数の個数: 32

約数和(自身を含む): 171561600

約数和(自身を除く): 90269682

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 643, 1109, 1286, 1929, 2218, 3327, 3858, 6654, 12217, 21071, 24434, 36651, 42142, 63213, 73302, 126426, 713087, 1426174, 2139261, 4278522, 13548653, 27097306, 40645959, 81291918]

約数ペア:

[(1, 81291918), (2, 40645959), (3, 27097306), (6, 13548653), (19, 4278522), (38, 2139261), (57, 1426174), (114, 713087), (643, 126426), (1109, 73302), (1286, 63213), (1929, 42142), (2218, 36651), (3327, 24434), (3858, 21071), (6654, 12217)]