13221495

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:861

約数の個数: 64

約数和(自身を含む): 28477440

約数和(自身を除く): 15255945

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 823, 945, 1071, 1785, 2295, 2469, 3213, 4115, 5355, 5761, 7407, 12345, 13991, 16065, 17283, 22221, 28805, 37035, 41973, 51849, 69955, 86415, 97937, 111105, 125919, 155547, 209865, 259245, 293811, 377757, 489685, 629595, 777735, 881433, 1469055, 1888785, 2644299, 4407165, 13221495]

約数ペア:

[(1, 13221495), (3, 4407165), (5, 2644299), (7, 1888785), (9, 1469055), (15, 881433), (17, 777735), (21, 629595), (27, 489685), (35, 377757), (45, 293811), (51, 259245), (63, 209865), (85, 155547), (105, 125919), (119, 111105), (135, 97937), (153, 86415), (189, 69955), (255, 51849), (315, 41973), (357, 37035), (459, 28805), (595, 22221), (765, 17283), (823, 16065), (945, 13991), (1071, 12345), (1785, 7407), (2295, 5761), (2469, 5355), (3213, 4115)]