21043048

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 23954072

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 61, 62, 104, 107, 122, 124, 214, 244, 248, 403, 428, 488, 793, 806, 856, 1391, 1586, 1612, 1891, 2782, 3172, 3224, 3317, 3782, 5564, 6344, 6527, 6634, 7564, 11128, 13054, 13268, 15128, 24583, 26108, 26536, 43121, 49166, 52216, 84851, 86242, 98332, 169702, 172484, 196664, 202337, 339404, 344968, 404674, 678808, 809348, 1618696, 2630381, 5260762, 10521524, 21043048]

約数ペア:

[(1, 21043048), (2, 10521524), (4, 5260762), (8, 2630381), (13, 1618696), (26, 809348), (31, 678808), (52, 404674), (61, 344968), (62, 339404), (104, 202337), (107, 196664), (122, 172484), (124, 169702), (214, 98332), (244, 86242), (248, 84851), (403, 52216), (428, 49166), (488, 43121), (793, 26536), (806, 26108), (856, 24583), (1391, 15128), (1586, 13268), (1612, 13054), (1891, 11128), (2782, 7564), (3172, 6634), (3224, 6527), (3317, 6344), (3782, 5564)]