19892499

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{601}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 31207680

約数和(自身を除く): 11315181

約数列:

[1, 3, 11, 17, 33, 51, 59, 177, 187, 561, 601, 649, 1003, 1803, 1947, 3009, 6611, 10217, 11033, 19833, 30651, 33099, 35459, 106377, 112387, 337161, 390049, 602803, 1170147, 1808409, 6630833, 19892499]

約数ペア:

[(1, 19892499), (3, 6630833), (11, 1808409), (17, 1170147), (33, 602803), (51, 390049), (59, 337161), (177, 112387), (187, 106377), (561, 35459), (601, 33099), (649, 30651), (1003, 19833), (1803, 11033), (1947, 10217), (3009, 6611)]