8331921

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 14152320

約数和(自身を除く): 5820399

約数列:

[1, 3, 9, 13, 17, 39, 51, 59, 71, 117, 153, 177, 213, 221, 531, 639, 663, 767, 923, 1003, 1207, 1989, 2301, 2769, 3009, 3621, 4189, 6903, 8307, 9027, 10863, 12567, 13039, 15691, 37701, 39117, 47073, 54457, 71213, 117351, 141219, 163371, 213639, 490113, 640917, 925769, 2777307, 8331921]

約数ペア:

[(1, 8331921), (3, 2777307), (9, 925769), (13, 640917), (17, 490113), (39, 213639), (51, 163371), (59, 141219), (71, 117351), (117, 71213), (153, 54457), (177, 47073), (213, 39117), (221, 37701), (531, 15691), (639, 13039), (663, 12567), (767, 10863), (923, 9027), (1003, 8307), (1207, 6903), (1989, 4189), (2301, 3621), (2769, 3009)]