21065744

素因数分解:

$2^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1481}}^1$

素因数の和:1623

約数の個数: 40

約数和(自身を含む): 47044608

約数和(自身を除く): 25978864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 127, 254, 508, 889, 1016, 1481, 1778, 2032, 2962, 3556, 5924, 7112, 10367, 11848, 14224, 20734, 23696, 41468, 82936, 165872, 188087, 376174, 752348, 1316609, 1504696, 2633218, 3009392, 5266436, 10532872, 21065744]

約数ペア:

[(1, 21065744), (2, 10532872), (4, 5266436), (7, 3009392), (8, 2633218), (14, 1504696), (16, 1316609), (28, 752348), (56, 376174), (112, 188087), (127, 165872), (254, 82936), (508, 41468), (889, 23696), (1016, 20734), (1481, 14224), (1778, 11848), (2032, 10367), (2962, 7112), (3556, 5924)]