71388723

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 112066560

約数和(自身を除く): 40677837

約数列:

[1, 3, 7, 21, 47, 141, 151, 329, 453, 479, 987, 1057, 1437, 3171, 3353, 7097, 10059, 21291, 22513, 49679, 67539, 72329, 149037, 157591, 216987, 472773, 506303, 1518909, 3399463, 10198389, 23796241, 71388723]

約数ペア:

[(1, 71388723), (3, 23796241), (7, 10198389), (21, 3399463), (47, 1518909), (141, 506303), (151, 472773), (329, 216987), (453, 157591), (479, 149037), (987, 72329), (1057, 67539), (1437, 49679), (3171, 22513), (3353, 21291), (7097, 10059)]