19971128

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1583}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19945672

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 152, 166, 332, 664, 1577, 1583, 3154, 3166, 6308, 6332, 12616, 12664, 30077, 60154, 120308, 131389, 240616, 262778, 525556, 1051112, 2496391, 4992782, 9985564, 19971128]

約数ペア:

[(1, 19971128), (2, 9985564), (4, 4992782), (8, 2496391), (19, 1051112), (38, 525556), (76, 262778), (83, 240616), (152, 131389), (166, 120308), (332, 60154), (664, 30077), (1577, 12664), (1583, 12616), (3154, 6332), (3166, 6308)]