21099777

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1013}}^1$

素因数の和:1200

約数の個数: 16

約数和(自身を含む): 28911168

約数和(自身を除く): 7811391

約数列:

[1, 3, 53, 131, 159, 393, 1013, 3039, 6943, 20829, 53689, 132703, 161067, 398109, 7033259, 21099777]

約数ペア:

[(1, 21099777), (3, 7033259), (53, 398109), (131, 161067), (159, 132703), (393, 53689), (1013, 20829), (3039, 6943)]