20785305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2203}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 36180864

約数和(自身を除く): 15395559

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2203, 3145, 6609, 9435, 11015, 33045, 37451, 81511, 112353, 187255, 244533, 407555, 561765, 1222665, 1385687, 4157061, 6928435, 20785305]

約数ペア:

[(1, 20785305), (3, 6928435), (5, 4157061), (15, 1385687), (17, 1222665), (37, 561765), (51, 407555), (85, 244533), (111, 187255), (185, 112353), (255, 81511), (555, 37451), (629, 33045), (1887, 11015), (2203, 9435), (3145, 6609)]