21102718

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2467}}^1$

素因数の和:2536

約数の個数: 32

約数和(自身を含む): 39803904

約数和(自身を除く): 18701186

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 182, 329, 611, 658, 1222, 2467, 4277, 4934, 8554, 17269, 32071, 34538, 64142, 115949, 224497, 231898, 448994, 811643, 1507337, 1623286, 3014674, 10551359, 21102718]

約数ペア:

[(1, 21102718), (2, 10551359), (7, 3014674), (13, 1623286), (14, 1507337), (26, 811643), (47, 448994), (91, 231898), (94, 224497), (182, 115949), (329, 64142), (611, 34538), (658, 32071), (1222, 17269), (2467, 8554), (4277, 4934)]