19918118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2803}}^1$

素因数の和:2852

約数の個数: 32

約数和(自身を含む): 36339840

約数和(自身を除く): 16421722

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 187, 209, 323, 374, 418, 646, 2803, 3553, 5606, 7106, 30833, 47651, 53257, 61666, 95302, 106514, 524161, 585827, 905369, 1048322, 1171654, 1810738, 9959059, 19918118]

約数ペア:

[(1, 19918118), (2, 9959059), (11, 1810738), (17, 1171654), (19, 1048322), (22, 905369), (34, 585827), (38, 524161), (187, 106514), (209, 95302), (323, 61666), (374, 53257), (418, 47651), (646, 30833), (2803, 7106), (3553, 5606)]