20228373

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:407

約数の個数: 40

約数和(自身を含む): 33523776

約数和(自身を除く): 13295403

約数列:

[1, 3, 9, 11, 27, 33, 73, 81, 99, 219, 297, 311, 657, 803, 891, 933, 1971, 2409, 2799, 3421, 5913, 7227, 8397, 10263, 21681, 22703, 25191, 30789, 65043, 68109, 92367, 204327, 249733, 277101, 612981, 749199, 1838943, 2247597, 6742791, 20228373]

約数ペア:

[(1, 20228373), (3, 6742791), (9, 2247597), (11, 1838943), (27, 749199), (33, 612981), (73, 277101), (81, 249733), (99, 204327), (219, 92367), (297, 68109), (311, 65043), (657, 30789), (803, 25191), (891, 22703), (933, 21681), (1971, 10263), (2409, 8397), (2799, 7227), (3421, 5913)]