20394829

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 25883928

約数和(自身を除く): 5489099

約数列:

[1, 7, 13, 49, 91, 101, 317, 637, 707, 1313, 2219, 4121, 4949, 9191, 15533, 28847, 32017, 64337, 201929, 224119, 416221, 1568833, 2913547, 20394829]

約数ペア:

[(1, 20394829), (7, 2913547), (13, 1568833), (49, 416221), (91, 224119), (101, 201929), (317, 64337), (637, 32017), (707, 28847), (1313, 15533), (2219, 9191), (4121, 4949)]