20979992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8221}}^1$

素因数の和:8267

約数の個数: 32

約数和(自身を含む): 44398800

約数和(自身を除く): 23418808

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 8221, 16442, 32884, 65768, 90431, 180862, 238409, 361724, 476818, 723448, 953636, 1907272, 2622499, 5244998, 10489996, 20979992]

約数ペア:

[(1, 20979992), (2, 10489996), (4, 5244998), (8, 2622499), (11, 1907272), (22, 953636), (29, 723448), (44, 476818), (58, 361724), (88, 238409), (116, 180862), (232, 90431), (319, 65768), (638, 32884), (1276, 16442), (2552, 8221)]