19194921

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 13982679

約数列:

[1, 3, 9, 17, 19, 27, 31, 51, 57, 71, 93, 153, 171, 213, 279, 323, 459, 513, 527, 589, 639, 837, 969, 1207, 1349, 1581, 1767, 1917, 2201, 2907, 3621, 4047, 4743, 5301, 6603, 8721, 10013, 10863, 12141, 14229, 15903, 19809, 22933, 30039, 32589, 36423, 37417, 41819, 59427, 68799, 90117, 112251, 125457, 206397, 270351, 336753, 376371, 619191, 710923, 1010259, 1129113, 2132769, 6398307, 19194921]

約数ペア:

[(1, 19194921), (3, 6398307), (9, 2132769), (17, 1129113), (19, 1010259), (27, 710923), (31, 619191), (51, 376371), (57, 336753), (71, 270351), (93, 206397), (153, 125457), (171, 112251), (213, 90117), (279, 68799), (323, 59427), (459, 41819), (513, 37417), (527, 36423), (589, 32589), (639, 30039), (837, 22933), (969, 19809), (1207, 15903), (1349, 14229), (1581, 12141), (1767, 10863), (1917, 10013), (2201, 8721), (2907, 6603), (3621, 5301), (4047, 4743)]