28125711

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 45348864

約数和(自身を除く): 17223153

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 207, 279, 487, 621, 713, 837, 1461, 1863, 2139, 2511, 4383, 6417, 11201, 13149, 15097, 19251, 33603, 39447, 45291, 57753, 100809, 135873, 302427, 347231, 407619, 907281, 1041693, 1222857, 3125079, 9375237, 28125711]

約数ペア:

[(1, 28125711), (3, 9375237), (9, 3125079), (23, 1222857), (27, 1041693), (31, 907281), (69, 407619), (81, 347231), (93, 302427), (207, 135873), (279, 100809), (487, 57753), (621, 45291), (713, 39447), (837, 33603), (1461, 19251), (1863, 15097), (2139, 13149), (2511, 11201), (4383, 6417)]