18721208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{929}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 38502000

約数和(自身を除く): 19780792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 229, 458, 916, 929, 1832, 1858, 2519, 3716, 5038, 7432, 10076, 10219, 20152, 20438, 40876, 81752, 212741, 425482, 850964, 1701928, 2340151, 4680302, 9360604, 18721208]

約数ペア:

[(1, 18721208), (2, 9360604), (4, 4680302), (8, 2340151), (11, 1701928), (22, 850964), (44, 425482), (88, 212741), (229, 81752), (458, 40876), (916, 20438), (929, 20152), (1832, 10219), (1858, 10076), (2519, 7432), (3716, 5038)]