519939

素因数分解:

$3^4\times 7^2\times {\mathrm{131}}^1$

素因数の和:157

約数の個数: 30

約数和(自身を含む): 910404

約数和(自身を除く): 390465

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 131, 147, 189, 393, 441, 567, 917, 1179, 1323, 2751, 3537, 3969, 6419, 8253, 10611, 19257, 24759, 57771, 74277, 173313, 519939]

約数ペア:

[(1, 519939), (3, 173313), (7, 74277), (9, 57771), (21, 24759), (27, 19257), (49, 10611), (63, 8253), (81, 6419), (131, 3969), (147, 3537), (189, 2751), (393, 1323), (441, 1179), (567, 917)]