21587410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{787}}^1$

素因数の和:1018

約数の個数: 32

約数和(自身を含む): 42098112

約数和(自身を除く): 20510702

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 787, 1055, 1574, 2110, 2743, 3935, 5486, 7870, 10231, 13715, 20462, 27430, 51155, 102310, 166057, 332114, 830285, 1660570, 2158741, 4317482, 10793705, 21587410]

約数ペア:

[(1, 21587410), (2, 10793705), (5, 4317482), (10, 2158741), (13, 1660570), (26, 830285), (65, 332114), (130, 166057), (211, 102310), (422, 51155), (787, 27430), (1055, 20462), (1574, 13715), (2110, 10231), (2743, 7870), (3935, 5486)]