1221345

素因数分解:

$3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 2217600

約数和(自身を除く): 996255

約数列:

[1, 3, 5, 9, 15, 27, 45, 83, 109, 135, 249, 327, 415, 545, 747, 981, 1245, 1635, 2241, 2943, 3735, 4905, 9047, 11205, 14715, 27141, 45235, 81423, 135705, 244269, 407115, 1221345]

約数ペア:

[(1, 1221345), (3, 407115), (5, 244269), (9, 135705), (15, 81423), (27, 45235), (45, 27141), (83, 14715), (109, 11205), (135, 9047), (249, 4905), (327, 3735), (415, 2943), (545, 2241), (747, 1635), (981, 1245)]