21368156919

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{33287}}^1$

素因数の和:33655

約数の個数: 32

約数和(自身を含む): 31004176896

約数和(自身を除く): 9636019977

約数列:

[1, 3, 17, 41, 51, 123, 307, 697, 921, 2091, 5219, 12587, 15657, 33287, 37761, 99861, 213979, 565879, 641937, 1364767, 1697637, 4094301, 10219109, 23201039, 30657327, 69603117, 173724853, 418983469, 521174559, 1256950407, 7122718973, 21368156919]

約数ペア:

[(1, 21368156919), (3, 7122718973), (17, 1256950407), (41, 521174559), (51, 418983469), (123, 173724853), (307, 69603117), (697, 30657327), (921, 23201039), (2091, 10219109), (5219, 4094301), (12587, 1697637), (15657, 1364767), (33287, 641937), (37761, 565879), (99861, 213979)]