19873984

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{23887}}^1$

素因数の和:23912

約数の個数: 28

約数和(自身を含む): 42472864

約数和(自身を除く): 22598880

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 23887, 47774, 95548, 191096, 310531, 382192, 621062, 764384, 1242124, 1528768, 2484248, 4968496, 9936992, 19873984]

約数ペア:

[(1, 19873984), (2, 9936992), (4, 4968496), (8, 2484248), (13, 1528768), (16, 1242124), (26, 764384), (32, 621062), (52, 382192), (64, 310531), (104, 191096), (208, 95548), (416, 47774), (832, 23887)]