21780586

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{4597}}^1$

素因数の和:4725

約数の個数: 16

約数和(自身を含む): 34429824

約数和(自身を除く): 12649238

約数列:

[1, 2, 23, 46, 103, 206, 2369, 4597, 4738, 9194, 105731, 211462, 473491, 946982, 10890293, 21780586]

約数ペア:

[(1, 21780586), (2, 10890293), (23, 946982), (46, 473491), (103, 211462), (206, 105731), (2369, 9194), (4597, 4738)]