17987944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{673}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 36517320

約数和(自身を除く): 18529376

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 257, 514, 673, 1028, 1346, 2056, 2692, 3341, 5384, 6682, 8749, 13364, 17498, 26728, 34996, 69992, 172961, 345922, 691844, 1383688, 2248493, 4496986, 8993972, 17987944]

約数ペア:

[(1, 17987944), (2, 8993972), (4, 4496986), (8, 2248493), (13, 1383688), (26, 691844), (52, 345922), (104, 172961), (257, 69992), (514, 34996), (673, 26728), (1028, 17498), (1346, 13364), (2056, 8749), (2692, 6682), (3341, 5384)]