19754884

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:804

約数の個数: 36

約数和(自身を含む): 38372544

約数和(自身を除く): 18617660

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 289, 391, 578, 743, 782, 1156, 1486, 1564, 2972, 6647, 12631, 13294, 17089, 25262, 26588, 34178, 50524, 68356, 214727, 290513, 429454, 581026, 858908, 1162052, 4938721, 9877442, 19754884]

約数ペア:

[(1, 19754884), (2, 9877442), (4, 4938721), (17, 1162052), (23, 858908), (34, 581026), (46, 429454), (68, 290513), (92, 214727), (289, 68356), (391, 50524), (578, 34178), (743, 26588), (782, 25262), (1156, 17089), (1486, 13294), (1564, 12631), (2972, 6647)]