1688897223

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{1603891}}^1$

素因数の和:1603916

約数の個数: 20

約数和(自身を含む): 2716993048

約数和(自身を除く): 1028095825

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 1603891, 4811673, 14435019, 20850583, 43305057, 62551749, 129915171, 187655247, 562965741, 1688897223]

約数ペア:

[(1, 1688897223), (3, 562965741), (9, 187655247), (13, 129915171), (27, 62551749), (39, 43305057), (81, 20850583), (117, 14435019), (351, 4811673), (1053, 1603891)]