1999329891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{72923}}^1$

素因数の和:72995

約数の個数: 32

約数和(自身を含む): 3103645440

約数和(自身を除く): 1104315549

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 1443, 2109, 9139, 27417, 72923, 218769, 947999, 1385537, 2698151, 2843997, 4156611, 8094453, 18011981, 35075963, 51264869, 54035943, 105227889, 153794607, 666443297, 1999329891]

約数ペア:

[(1, 1999329891), (3, 666443297), (13, 153794607), (19, 105227889), (37, 54035943), (39, 51264869), (57, 35075963), (111, 18011981), (247, 8094453), (481, 4156611), (703, 2843997), (741, 2698151), (1443, 1385537), (2109, 947999), (9139, 218769), (27417, 72923)]