15138991

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 32

約数和(自身を含む): 19584000

約数和(自身を除く): 4445009

約数列:

[1, 7, 19, 23, 49, 101, 133, 161, 343, 437, 707, 931, 1127, 1919, 2323, 3059, 4949, 6517, 7889, 13433, 16261, 21413, 34643, 44137, 94031, 113827, 149891, 308959, 658217, 796789, 2162713, 15138991]

約数ペア:

[(1, 15138991), (7, 2162713), (19, 796789), (23, 658217), (49, 308959), (101, 149891), (133, 113827), (161, 94031), (343, 44137), (437, 34643), (707, 21413), (931, 16261), (1127, 13433), (1919, 7889), (2323, 6517), (3059, 4949)]