20931464

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137707}}^1$

素因数の和:137732

約数の個数: 16

約数和(自身を含む): 41312400

約数和(自身を除く): 20380936

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 137707, 275414, 550828, 1101656, 2616433, 5232866, 10465732, 20931464]

約数ペア:

[(1, 20931464), (2, 10465732), (4, 5232866), (8, 2616433), (19, 1101656), (38, 550828), (76, 275414), (152, 137707)]