20727539

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5127661

約数列:

[1, 7, 17, 49, 119, 149, 167, 833, 1043, 1169, 2533, 2839, 7301, 8183, 17731, 19873, 24883, 124117, 139111, 174181, 423011, 1219267, 2961077, 20727539]

約数ペア:

[(1, 20727539), (7, 2961077), (17, 1219267), (49, 423011), (119, 174181), (149, 139111), (167, 124117), (833, 24883), (1043, 19873), (1169, 17731), (2533, 8183), (2839, 7301)]