19155855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1747}}^1$

素因数の和:1815

約数の個数: 32

約数和(自身を含む): 33225984

約数和(自身を除く): 14070129

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1747, 2193, 3655, 5241, 8735, 10965, 26205, 29699, 75121, 89097, 148495, 225363, 375605, 445485, 1126815, 1277057, 3831171, 6385285, 19155855]

約数ペア:

[(1, 19155855), (3, 6385285), (5, 3831171), (15, 1277057), (17, 1126815), (43, 445485), (51, 375605), (85, 225363), (129, 148495), (215, 89097), (255, 75121), (645, 29699), (731, 26205), (1747, 10965), (2193, 8735), (3655, 5241)]