16991223

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 23139072

約数和(自身を除く): 6147849

約数列:

[1, 3, 71, 213, 241, 331, 723, 993, 17111, 23501, 51333, 70503, 79771, 239313, 5663741, 16991223]

約数ペア:

[(1, 16991223), (3, 5663741), (71, 239313), (213, 79771), (241, 70503), (331, 51333), (723, 23501), (993, 17111)]