257061393

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 409743360

約数和(自身を除く): 152681967

約数列:

[1, 3, 9, 19, 31, 57, 71, 93, 171, 213, 279, 589, 639, 683, 1349, 1767, 2049, 2201, 4047, 5301, 6147, 6603, 12141, 12977, 19809, 21173, 38931, 41819, 48493, 63519, 116793, 125457, 145479, 190557, 376371, 402287, 436437, 921367, 1206861, 1503283, 2764101, 3620583, 4509849, 8292303, 13529547, 28562377, 85687131, 257061393]

約数ペア:

[(1, 257061393), (3, 85687131), (9, 28562377), (19, 13529547), (31, 8292303), (57, 4509849), (71, 3620583), (93, 2764101), (171, 1503283), (213, 1206861), (279, 921367), (589, 436437), (639, 402287), (683, 376371), (1349, 190557), (1767, 145479), (2049, 125457), (2201, 116793), (4047, 63519), (5301, 48493), (6147, 41819), (6603, 38931), (12141, 21173), (12977, 19809)]