20178441381

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1\times {\mathrm{17291}}^1$

素因数の和:18273

約数の個数: 32

約数和(自身を含む): 31288283136

約数和(自身を除く): 11109841755

約数列:

[1, 3, 7, 21, 61, 183, 427, 911, 1281, 2733, 6377, 17291, 19131, 51873, 55571, 121037, 166713, 363111, 388997, 1054751, 1166991, 3164253, 7383257, 15752101, 22149771, 47256303, 110264707, 330794121, 960878161, 2882634483, 6726147127, 20178441381]

約数ペア:

[(1, 20178441381), (3, 6726147127), (7, 2882634483), (21, 960878161), (61, 330794121), (183, 110264707), (427, 47256303), (911, 22149771), (1281, 15752101), (2733, 7383257), (6377, 3164253), (17291, 1166991), (19131, 1054751), (51873, 388997), (55571, 363111), (121037, 166713)]