15540399

素因数分解:

$3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 26409240

約数和(自身を除く): 10868841

約数列:

[1, 3, 7, 9, 21, 49, 63, 131, 147, 269, 393, 441, 807, 917, 1179, 1883, 2421, 2751, 5649, 6419, 8253, 13181, 16947, 19257, 35239, 39543, 57771, 105717, 118629, 246673, 317151, 740019, 1726711, 2220057, 5180133, 15540399]

約数ペア:

[(1, 15540399), (3, 5180133), (7, 2220057), (9, 1726711), (21, 740019), (49, 317151), (63, 246673), (131, 118629), (147, 105717), (269, 57771), (393, 39543), (441, 35239), (807, 19257), (917, 16947), (1179, 13181), (1883, 8253), (2421, 6419), (2751, 5649)]