18617938

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:681

約数の個数: 16

約数和(自身を含む): 28355040

約数和(自身を除く): 9737102

約数列:

[1, 2, 139, 193, 278, 347, 386, 694, 26827, 48233, 53654, 66971, 96466, 133942, 9308969, 18617938]

約数ペア:

[(1, 18617938), (2, 9308969), (139, 133942), (193, 96466), (278, 66971), (347, 53654), (386, 48233), (694, 26827)]