19797428

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 41080704

約数和(自身を除く): 21283276

約数列:

[1, 2, 4, 7, 14, 28, 61, 67, 122, 134, 173, 244, 268, 346, 427, 469, 692, 854, 938, 1211, 1708, 1876, 2422, 4087, 4844, 8174, 10553, 11591, 16348, 21106, 23182, 28609, 42212, 46364, 57218, 73871, 81137, 114436, 147742, 162274, 295484, 324548, 707051, 1414102, 2828204, 4949357, 9898714, 19797428]

約数ペア:

[(1, 19797428), (2, 9898714), (4, 4949357), (7, 2828204), (14, 1414102), (28, 707051), (61, 324548), (67, 295484), (122, 162274), (134, 147742), (173, 114436), (244, 81137), (268, 73871), (346, 57218), (427, 46364), (469, 42212), (692, 28609), (854, 23182), (938, 21106), (1211, 16348), (1708, 11591), (1876, 10553), (2422, 8174), (4087, 4844)]