21999868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21739}}^1$

素因数の和:21777

約数の個数: 24

約数和(自身を含む): 43827840

約数和(自身を除く): 21827972

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 21739, 43478, 86956, 239129, 478258, 499997, 956516, 999994, 1999988, 5499967, 10999934, 21999868]

約数ペア:

[(1, 21999868), (2, 10999934), (4, 5499967), (11, 1999988), (22, 999994), (23, 956516), (44, 499997), (46, 478258), (92, 239129), (253, 86956), (506, 43478), (1012, 21739)]