85720921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 105993216

約数和(自身を除く): 20272295

約数列:

[1, 11, 13, 31, 61, 143, 317, 341, 403, 671, 793, 1891, 3487, 4121, 4433, 8723, 9827, 19337, 20801, 24583, 45331, 108097, 127751, 212707, 251381, 270413, 599447, 1405261, 2765191, 6593917, 7792811, 85720921]

約数ペア:

[(1, 85720921), (11, 7792811), (13, 6593917), (31, 2765191), (61, 1405261), (143, 599447), (317, 270413), (341, 251381), (403, 212707), (671, 127751), (793, 108097), (1891, 45331), (3487, 24583), (4121, 20801), (4433, 19337), (8723, 9827)]