21573695

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 30959208

約数和(自身を除く): 9385513

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 169, 211, 605, 715, 845, 1055, 1573, 1859, 2321, 2743, 7865, 9295, 11605, 13715, 20449, 25531, 30173, 35659, 102245, 127655, 150865, 178295, 331903, 392249, 1659515, 1961245, 4314739, 21573695]

約数ペア:

[(1, 21573695), (5, 4314739), (11, 1961245), (13, 1659515), (55, 392249), (65, 331903), (121, 178295), (143, 150865), (169, 127655), (211, 102245), (605, 35659), (715, 30173), (845, 25531), (1055, 20449), (1573, 13715), (1859, 11605), (2321, 9295), (2743, 7865)]