209700208

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{26693}}^1$

素因数の和:27192

約数の個数: 20

約数和(自身を含む): 407136888

約数和(自身を除く): 197436680

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 26693, 53386, 106772, 213544, 427088, 13106263, 26212526, 52425052, 104850104, 209700208]

約数ペア:

[(1, 209700208), (2, 104850104), (4, 52425052), (8, 26212526), (16, 13106263), (491, 427088), (982, 213544), (1964, 106772), (3928, 53386), (7856, 26693)]