19486688

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 41736240

約数和(自身を除く): 22249552

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 139, 208, 278, 337, 416, 556, 674, 1112, 1348, 1807, 2224, 2696, 3614, 4381, 4448, 5392, 7228, 8762, 10784, 14456, 17524, 28912, 35048, 46843, 57824, 70096, 93686, 140192, 187372, 374744, 608959, 749488, 1217918, 1498976, 2435836, 4871672, 9743344, 19486688]

約数ペア:

[(1, 19486688), (2, 9743344), (4, 4871672), (8, 2435836), (13, 1498976), (16, 1217918), (26, 749488), (32, 608959), (52, 374744), (104, 187372), (139, 140192), (208, 93686), (278, 70096), (337, 57824), (416, 46843), (556, 35048), (674, 28912), (1112, 17524), (1348, 14456), (1807, 10784), (2224, 8762), (2696, 7228), (3614, 5392), (4381, 4448)]