21917716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1667}}^1$

素因数の和:1863

約数の個数: 24

約数和(自身を含む): 40632480

約数和(自身を除く): 18714764

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 1667, 3287, 3334, 6574, 6668, 13148, 31673, 63346, 126692, 288391, 576782, 1153564, 5479429, 10958858, 21917716]

約数ペア:

[(1, 21917716), (2, 10958858), (4, 5479429), (19, 1153564), (38, 576782), (76, 288391), (173, 126692), (346, 63346), (692, 31673), (1667, 13148), (3287, 6668), (3334, 6574)]