21624260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154459}}^1$

素因数の和:154475

約数の個数: 24

約数和(自身を含む): 51898560

約数和(自身を除く): 30274300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154459, 308918, 617836, 772295, 1081213, 1544590, 2162426, 3089180, 4324852, 5406065, 10812130, 21624260]

約数ペア:

[(1, 21624260), (2, 10812130), (4, 5406065), (5, 4324852), (7, 3089180), (10, 2162426), (14, 1544590), (20, 1081213), (28, 772295), (35, 617836), (70, 308918), (140, 154459)]