161718194

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{18061}}^1$

素因数の和:18122

約数の個数: 24

約数和(自身を含む): 273856044

約数和(自身を除く): 112137850

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 4477, 8954, 18061, 36122, 198671, 397342, 668257, 1336514, 2185381, 4370762, 7350827, 14701654, 80859097, 161718194]

約数ペア:

[(1, 161718194), (2, 80859097), (11, 14701654), (22, 7350827), (37, 4370762), (74, 2185381), (121, 1336514), (242, 668257), (407, 397342), (814, 198671), (4477, 36122), (8954, 18061)]