18659824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61381}}^1$

素因数の和:61408

約数の個数: 20

約数和(自身を含む): 38056840

約数和(自身を除く): 19397016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61381, 122762, 245524, 491048, 982096, 1166239, 2332478, 4664956, 9329912, 18659824]

約数ペア:

[(1, 18659824), (2, 9329912), (4, 4664956), (8, 2332478), (16, 1166239), (19, 982096), (38, 491048), (76, 245524), (152, 122762), (304, 61381)]