218211315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{839}}^1\times {\mathrm{2477}}^1$

素因数の和:3331

約数の個数: 32

約数和(自身を含む): 399651840

約数和(自身を除く): 181440525

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 839, 2477, 2517, 4195, 5873, 7431, 12385, 12585, 17339, 17619, 29365, 37155, 52017, 86695, 88095, 260085, 2078203, 6234609, 10391015, 14547421, 31173045, 43642263, 72737105, 218211315]

約数ペア:

[(1, 218211315), (3, 72737105), (5, 43642263), (7, 31173045), (15, 14547421), (21, 10391015), (35, 6234609), (105, 2078203), (839, 260085), (2477, 88095), (2517, 86695), (4195, 52017), (5873, 37155), (7431, 29365), (12385, 17619), (12585, 17339)]