19201509

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 29808000

約数和(自身を除く): 10606491

約数列:

[1, 3, 9, 27, 29, 87, 137, 179, 261, 411, 537, 783, 1233, 1611, 3699, 3973, 4833, 5191, 11919, 15573, 24523, 35757, 46719, 73569, 107271, 140157, 220707, 662121, 711167, 2133501, 6400503, 19201509]

約数ペア:

[(1, 19201509), (3, 6400503), (9, 2133501), (27, 711167), (29, 662121), (87, 220707), (137, 140157), (179, 107271), (261, 73569), (411, 46719), (537, 35757), (783, 24523), (1233, 15573), (1611, 11919), (3699, 5191), (3973, 4833)]