16620990411

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{408971}}^1$

素因数の和:409047

約数の個数: 32

約数和(自身を含む): 25127239680

約数和(自身を除く): 8506249269

約数列:

[1, 3, 19, 23, 31, 57, 69, 93, 437, 589, 713, 1311, 1767, 2139, 13547, 40641, 408971, 1226913, 7770449, 9406333, 12678101, 23311347, 28218999, 38034303, 178720327, 240883919, 291596323, 536160981, 722651757, 874788969, 5540330137, 16620990411]

約数ペア:

[(1, 16620990411), (3, 5540330137), (19, 874788969), (23, 722651757), (31, 536160981), (57, 291596323), (69, 240883919), (93, 178720327), (437, 38034303), (589, 28218999), (713, 23311347), (1311, 12678101), (1767, 9406333), (2139, 7770449), (13547, 1226913), (40641, 408971)]