21315064

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{683}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 20053256

約数列:

[1, 2, 4, 8, 47, 83, 94, 166, 188, 332, 376, 664, 683, 1366, 2732, 3901, 5464, 7802, 15604, 31208, 32101, 56689, 64202, 113378, 128404, 226756, 256808, 453512, 2664383, 5328766, 10657532, 21315064]

約数ペア:

[(1, 21315064), (2, 10657532), (4, 5328766), (8, 2664383), (47, 453512), (83, 256808), (94, 226756), (166, 128404), (188, 113378), (332, 64202), (376, 56689), (664, 32101), (683, 31208), (1366, 15604), (2732, 7802), (3901, 5464)]