7420491

素因数分解:

$3^9\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:69

約数の個数: 40

約数和(自身を含む): 12400080

約数和(自身を除く): 4979589

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 243, 261, 351, 377, 729, 783, 1053, 1131, 2187, 2349, 3159, 3393, 6561, 7047, 9477, 10179, 19683, 21141, 28431, 30537, 63423, 85293, 91611, 190269, 255879, 274833, 570807, 824499, 2473497, 7420491]

約数ペア:

[(1, 7420491), (3, 2473497), (9, 824499), (13, 570807), (27, 274833), (29, 255879), (39, 190269), (81, 91611), (87, 85293), (117, 63423), (243, 30537), (261, 28431), (351, 21141), (377, 19683), (729, 10179), (783, 9477), (1053, 7047), (1131, 6561), (2187, 3393), (2349, 3159)]