21890626

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{1301}}^1$

素因数の和:1529

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 11857214

約数列:

[1, 2, 47, 94, 179, 358, 1301, 2602, 8413, 16826, 61147, 122294, 232879, 465758, 10945313, 21890626]

約数ペア:

[(1, 21890626), (2, 10945313), (47, 465758), (94, 232879), (179, 122294), (358, 61147), (1301, 16826), (2602, 8413)]