21415952

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16943}}^1$

素因数の和:17030

約数の個数: 20

約数和(自身を含む): 42021120

約数和(自身を除く): 20605168

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16943, 33886, 67772, 135544, 271088, 1338497, 2676994, 5353988, 10707976, 21415952]

約数ペア:

[(1, 21415952), (2, 10707976), (4, 5353988), (8, 2676994), (16, 1338497), (79, 271088), (158, 135544), (316, 67772), (632, 33886), (1264, 16943)]