19882864

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 40466160

約数和(自身を除く): 20583296

約数列:

[1, 2, 4, 8, 16, 29, 58, 73, 116, 146, 232, 292, 464, 584, 587, 1168, 1174, 2117, 2348, 4234, 4696, 8468, 9392, 16936, 17023, 33872, 34046, 42851, 68092, 85702, 136184, 171404, 272368, 342808, 685616, 1242679, 2485358, 4970716, 9941432, 19882864]

約数ペア:

[(1, 19882864), (2, 9941432), (4, 4970716), (8, 2485358), (16, 1242679), (29, 685616), (58, 342808), (73, 272368), (116, 171404), (146, 136184), (232, 85702), (292, 68092), (464, 42851), (584, 34046), (587, 33872), (1168, 17023), (1174, 16936), (2117, 9392), (2348, 8468), (4234, 4696)]