21513932

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 42844032

約数和(自身を除く): 21330100

約数列:

[1, 2, 4, 11, 22, 43, 44, 83, 86, 137, 166, 172, 274, 332, 473, 548, 913, 946, 1507, 1826, 1892, 3014, 3569, 3652, 5891, 6028, 7138, 11371, 11782, 14276, 22742, 23564, 39259, 45484, 64801, 78518, 125081, 129602, 157036, 250162, 259204, 488953, 500324, 977906, 1955812, 5378483, 10756966, 21513932]

約数ペア:

[(1, 21513932), (2, 10756966), (4, 5378483), (11, 1955812), (22, 977906), (43, 500324), (44, 488953), (83, 259204), (86, 250162), (137, 157036), (166, 129602), (172, 125081), (274, 78518), (332, 64801), (473, 45484), (548, 39259), (913, 23564), (946, 22742), (1507, 14276), (1826, 11782), (1892, 11371), (3014, 7138), (3569, 6028), (3652, 5891)]