20161786856

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{41315137}}^1$

素因数の和:41315204

約数の個数: 16

約数和(自身を含む): 38423078340

約数和(自身を除く): 18261291484

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 41315137, 82630274, 165260548, 330521096, 2520223357, 5040446714, 10080893428, 20161786856]

約数ペア:

[(1, 20161786856), (2, 10080893428), (4, 5040446714), (8, 2520223357), (61, 330521096), (122, 165260548), (244, 82630274), (488, 41315137)]