156979389

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{22721}}^1$

素因数の和:22785

約数の個数: 24

約数和(自身を含む): 248669568

約数和(自身を除く): 91690179

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 22721, 68163, 159047, 477141, 1067887, 1113329, 3203661, 3339987, 7475209, 22425627, 52326463, 156979389]

約数ペア:

[(1, 156979389), (3, 52326463), (7, 22425627), (21, 7475209), (47, 3339987), (49, 3203661), (141, 1113329), (147, 1067887), (329, 477141), (987, 159047), (2303, 68163), (6909, 22721)]