19512970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1973}}^1$

素因数の和:2046

約数の個数: 32

約数和(自身を含む): 37521792

約数和(自身を除く): 18008822

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1973, 1978, 3946, 4945, 9865, 9890, 19730, 45379, 84839, 90758, 169678, 226895, 424195, 453790, 848390, 1951297, 3902594, 9756485, 19512970]

約数ペア:

[(1, 19512970), (2, 9756485), (5, 3902594), (10, 1951297), (23, 848390), (43, 453790), (46, 424195), (86, 226895), (115, 169678), (215, 90758), (230, 84839), (430, 45379), (989, 19730), (1973, 9890), (1978, 9865), (3946, 4945)]