21318517826

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{2341}}^1\times {\mathrm{12613}}^1$

素因数の和:14994

約数の個数: 24

約数和(自身を含む): 33766492284

約数和(自身を除く): 12447974458

約数列:

[1, 2, 19, 38, 361, 722, 2341, 4682, 12613, 25226, 44479, 88958, 239647, 479294, 845101, 1690202, 4553293, 9106586, 29527033, 59054066, 561013627, 1122027254, 10659258913, 21318517826]

約数ペア:

[(1, 21318517826), (2, 10659258913), (19, 1122027254), (38, 561013627), (361, 59054066), (722, 29527033), (2341, 9106586), (4682, 4553293), (12613, 1690202), (25226, 845101), (44479, 479294), (88958, 239647)]