20703459

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6529}}^1$

素因数の和:6690

約数の個数: 16

約数和(自身を含む): 31761920

約数和(自身を除く): 11058461

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6529, 19587, 45703, 137109, 985879, 2957637, 6901153, 20703459]

約数ペア:

[(1, 20703459), (3, 6901153), (7, 2957637), (21, 985879), (151, 137109), (453, 45703), (1057, 19587), (3171, 6529)]