18666854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8053}}^1$

素因数の和:8135

約数の個数: 16

約数和(自身を含む): 29960880

約数和(自身を除く): 11294026

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8053, 16106, 153007, 306014, 491233, 982466, 9333427, 18666854]

約数ペア:

[(1, 18666854), (2, 9333427), (19, 982466), (38, 491233), (61, 306014), (122, 153007), (1159, 16106), (2318, 8053)]