121225215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1103}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 206032896

約数和(自身を除く): 84807681

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 431, 1103, 1293, 2155, 3309, 5515, 6465, 7327, 16545, 18751, 21981, 36635, 56253, 93755, 109905, 281265, 475393, 1426179, 2376965, 7130895, 8081681, 24245043, 40408405, 121225215]

約数ペア:

[(1, 121225215), (3, 40408405), (5, 24245043), (15, 8081681), (17, 7130895), (51, 2376965), (85, 1426179), (255, 475393), (431, 281265), (1103, 109905), (1293, 93755), (2155, 56253), (3309, 36635), (5515, 21981), (6465, 18751), (7327, 16545)]