19992368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3917}}^1$

素因数の和:3965

約数の個数: 40

約数和(自身を含む): 43724880

約数和(自身を除く): 23732512

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 3917, 5104, 7834, 15668, 31336, 43087, 62672, 86174, 113593, 172348, 227186, 344696, 454372, 689392, 908744, 1249523, 1817488, 2499046, 4998092, 9996184, 19992368]

約数ペア:

[(1, 19992368), (2, 9996184), (4, 4998092), (8, 2499046), (11, 1817488), (16, 1249523), (22, 908744), (29, 689392), (44, 454372), (58, 344696), (88, 227186), (116, 172348), (176, 113593), (232, 86174), (319, 62672), (464, 43087), (638, 31336), (1276, 15668), (2552, 7834), (3917, 5104)]