20548155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 35408448

約数和(自身を除く): 14860293

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1321, 3111, 3963, 5185, 6605, 15555, 19815, 22457, 67371, 80581, 112285, 241743, 336855, 402905, 1208715, 1369877, 4109631, 6849385, 20548155]

約数ペア:

[(1, 20548155), (3, 6849385), (5, 4109631), (15, 1369877), (17, 1208715), (51, 402905), (61, 336855), (85, 241743), (183, 112285), (255, 80581), (305, 67371), (915, 22457), (1037, 19815), (1321, 15555), (3111, 6605), (3963, 5185)]