19893796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2003}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 37707264

約数和(自身を除く): 17813468

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2003, 2483, 4006, 4966, 8012, 9932, 26039, 52078, 104156, 382573, 765146, 1530292, 4973449, 9946898, 19893796]

約数ペア:

[(1, 19893796), (2, 9946898), (4, 4973449), (13, 1530292), (26, 765146), (52, 382573), (191, 104156), (382, 52078), (764, 26039), (2003, 9932), (2483, 8012), (4006, 4966)]