21500687

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 24902640

約数和(自身を除く): 3401953

約数列:

[1, 13, 29, 41, 107, 169, 377, 533, 1189, 1391, 3103, 4387, 4901, 6929, 15457, 18083, 40339, 57031, 127223, 200941, 524407, 741403, 1653899, 21500687]

約数ペア:

[(1, 21500687), (13, 1653899), (29, 741403), (41, 524407), (107, 200941), (169, 127223), (377, 57031), (533, 40339), (1189, 18083), (1391, 15457), (3103, 6929), (4387, 4901)]