21994343

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2711}}^1$

素因数の和:2798

約数の個数: 16

約数和(自身を含む): 26903040

約数和(自身を除く): 4908697

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2711, 8113, 18977, 51509, 165371, 360563, 1157597, 3142049, 21994343]

約数ペア:

[(1, 21994343), (7, 3142049), (19, 1157597), (61, 360563), (133, 165371), (427, 51509), (1159, 18977), (2711, 8113)]