20814365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 30070656

約数和(自身を除く): 9256291

約数列:

[1, 5, 11, 13, 43, 55, 65, 143, 215, 473, 559, 677, 715, 2365, 2795, 3385, 6149, 7447, 8801, 29111, 30745, 37235, 44005, 96811, 145555, 320221, 378443, 484055, 1601105, 1892215, 4162873, 20814365]

約数ペア:

[(1, 20814365), (5, 4162873), (11, 1892215), (13, 1601105), (43, 484055), (55, 378443), (65, 320221), (143, 145555), (215, 96811), (473, 44005), (559, 37235), (677, 30745), (715, 29111), (2365, 8801), (2795, 7447), (3385, 6149)]