1990491

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 16

約数和(自身を含む): 2752800

約数和(自身を除く): 762309

約数列:

[1, 3, 61, 73, 149, 183, 219, 447, 4453, 9089, 10877, 13359, 27267, 32631, 663497, 1990491]

約数ペア:

[(1, 1990491), (3, 663497), (61, 32631), (73, 27267), (149, 13359), (183, 10877), (219, 9089), (447, 4453)]