18761859

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 28473120

約数和(自身を除く): 9711261

約数列:

[1, 3, 9, 23, 69, 207, 233, 389, 699, 1167, 2097, 3501, 5359, 8947, 16077, 26841, 48231, 80523, 90637, 271911, 815733, 2084651, 6253953, 18761859]

約数ペア:

[(1, 18761859), (3, 6253953), (9, 2084651), (23, 815733), (69, 271911), (207, 90637), (233, 80523), (389, 48231), (699, 26841), (1167, 16077), (2097, 8947), (3501, 5359)]