21802137

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{45139}}^1$

素因数の和:45172

約数の個数: 16

約数和(自身を含む): 34667520

約数和(自身を除く): 12865383

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 45139, 135417, 315973, 947919, 1038197, 3114591, 7267379, 21802137]

約数ペア:

[(1, 21802137), (3, 7267379), (7, 3114591), (21, 1038197), (23, 947919), (69, 315973), (161, 135417), (483, 45139)]