19911386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53239}}^1$

素因数の和:53269

約数の個数: 16

約数和(自身を含む): 34499520

約数和(自身を除く): 14588134

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 53239, 106478, 585629, 905063, 1171258, 1810126, 9955693, 19911386]

約数ペア:

[(1, 19911386), (2, 9955693), (11, 1810126), (17, 1171258), (22, 905063), (34, 585629), (187, 106478), (374, 53239)]