17771728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2051

約数の個数: 40

約数和(自身を含む): 37962848

約数和(自身を除く): 20191120

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 1987, 2236, 3974, 4472, 7948, 8944, 15896, 25831, 31792, 51662, 85441, 103324, 170882, 206648, 341764, 413296, 683528, 1110733, 1367056, 2221466, 4442932, 8885864, 17771728]

約数ペア:

[(1, 17771728), (2, 8885864), (4, 4442932), (8, 2221466), (13, 1367056), (16, 1110733), (26, 683528), (43, 413296), (52, 341764), (86, 206648), (104, 170882), (172, 103324), (208, 85441), (344, 51662), (559, 31792), (688, 25831), (1118, 15896), (1987, 8944), (2236, 7948), (3974, 4472)]