28363905

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{727}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 53639040

約数和(自身を除く): 25275135

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 289, 459, 727, 765, 867, 1445, 2181, 2295, 2601, 3635, 4335, 6543, 7803, 10905, 12359, 13005, 19629, 32715, 37077, 39015, 61795, 98145, 111231, 185385, 210103, 333693, 556155, 630309, 1050515, 1668465, 1890927, 3151545, 5672781, 9454635, 28363905]

約数ペア:

[(1, 28363905), (3, 9454635), (5, 5672781), (9, 3151545), (15, 1890927), (17, 1668465), (27, 1050515), (45, 630309), (51, 556155), (85, 333693), (135, 210103), (153, 185385), (255, 111231), (289, 98145), (459, 61795), (727, 39015), (765, 37077), (867, 32715), (1445, 19629), (2181, 13005), (2295, 12359), (2601, 10905), (3635, 7803), (4335, 6543)]