21545408

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7829}}^1$

素因数の和:7884

約数の個数: 28

約数和(自身を含む): 43754040

約数和(自身を除く): 22208632

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7829, 15658, 31316, 62632, 125264, 250528, 336647, 501056, 673294, 1346588, 2693176, 5386352, 10772704, 21545408]

約数ペア:

[(1, 21545408), (2, 10772704), (4, 5386352), (8, 2693176), (16, 1346588), (32, 673294), (43, 501056), (64, 336647), (86, 250528), (172, 125264), (344, 62632), (688, 31316), (1376, 15658), (2752, 7829)]