19278501

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 28690272

約数和(自身を除く): 9411771

約数列:

[1, 3, 11, 33, 61, 157, 183, 471, 671, 1727, 2013, 3721, 5181, 9577, 11163, 28731, 40931, 105347, 122793, 316041, 584197, 1752591, 6426167, 19278501]

約数ペア:

[(1, 19278501), (3, 6426167), (11, 1752591), (33, 584197), (61, 316041), (157, 122793), (183, 105347), (471, 40931), (671, 28731), (1727, 11163), (2013, 9577), (3721, 5181)]