18270915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2179}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 32229120

約数和(自身を除く): 13958205

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2179, 2795, 6537, 8385, 10895, 28327, 32685, 84981, 93697, 141635, 281091, 424905, 468485, 1218061, 1405455, 3654183, 6090305, 18270915]

約数ペア:

[(1, 18270915), (3, 6090305), (5, 3654183), (13, 1405455), (15, 1218061), (39, 468485), (43, 424905), (65, 281091), (129, 141635), (195, 93697), (215, 84981), (559, 32685), (645, 28327), (1677, 10895), (2179, 8385), (2795, 6537)]