21349274

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 35199360

約数和(自身を除く): 13850086

約数列:

[1, 2, 19, 38, 41, 71, 82, 142, 193, 386, 779, 1349, 1558, 2698, 2911, 3667, 5822, 7334, 7913, 13703, 15826, 27406, 55309, 110618, 150347, 260357, 300694, 520714, 561823, 1123646, 10674637, 21349274]

約数ペア:

[(1, 21349274), (2, 10674637), (19, 1123646), (38, 561823), (41, 520714), (71, 300694), (82, 260357), (142, 150347), (193, 110618), (386, 55309), (779, 27406), (1349, 15826), (1558, 13703), (2698, 7913), (2911, 7334), (3667, 5822)]