21158942

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2857}}^1$

素因数の和:2912

約数の個数: 24

約数和(自身を含む): 37931376

約数和(自身を除く): 16772434

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 529, 1058, 2857, 3703, 5714, 7406, 19999, 39998, 65711, 131422, 459977, 919954, 1511353, 3022706, 10579471, 21158942]

約数ペア:

[(1, 21158942), (2, 10579471), (7, 3022706), (14, 1511353), (23, 919954), (46, 459977), (161, 131422), (322, 65711), (529, 39998), (1058, 19999), (2857, 7406), (3703, 5714)]