201978721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1\times {\mathrm{1667}}^1$

素因数の和:2604

約数の個数: 16

約数和(自身を含む): 243394560

約数和(自身を除く): 41415839

約数列:

[1, 7, 19, 133, 911, 1667, 6377, 11669, 17309, 31673, 121163, 221711, 1518637, 10630459, 28854103, 201978721]

約数ペア:

[(1, 201978721), (7, 28854103), (19, 10630459), (133, 1518637), (911, 221711), (1667, 121163), (6377, 31673), (11669, 17309)]