21000339344

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{4879261}}^1$

素因数の和:4879538

約数の個数: 20

約数和(自身を含む): 40839422940

約数和(自身を除く): 19839083596

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 4879261, 9758522, 19517044, 39034088, 78068176, 1312521209, 2625042418, 5250084836, 10500169672, 21000339344]

約数ペア:

[(1, 21000339344), (2, 10500169672), (4, 5250084836), (8, 2625042418), (16, 1312521209), (269, 78068176), (538, 39034088), (1076, 19517044), (2152, 9758522), (4304, 4879261)]