128528253

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{27947}}^1$

素因数の和:28033

約数の個数: 24

約数和(自身を含む): 215087808

約数和(自身を除く): 86559555

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 27947, 83841, 195629, 251523, 586887, 1760661, 2040131, 6120393, 14280917, 18361179, 42842751, 128528253]

約数ペア:

[(1, 128528253), (3, 42842751), (7, 18361179), (9, 14280917), (21, 6120393), (63, 2040131), (73, 1760661), (219, 586887), (511, 251523), (657, 195629), (1533, 83841), (4599, 27947)]