21132928

素因数分解:

$2^7\times {\mathrm{107}}^1\times {\mathrm{1543}}^1$

素因数の和:1664

約数の個数: 32

約数和(自身を含む): 42521760

約数和(自身を除く): 21388832

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 428, 856, 1543, 1712, 3086, 3424, 6172, 6848, 12344, 13696, 24688, 49376, 98752, 165101, 197504, 330202, 660404, 1320808, 2641616, 5283232, 10566464, 21132928]

約数ペア:

[(1, 21132928), (2, 10566464), (4, 5283232), (8, 2641616), (16, 1320808), (32, 660404), (64, 330202), (107, 197504), (128, 165101), (214, 98752), (428, 49376), (856, 24688), (1543, 13696), (1712, 12344), (3086, 6848), (3424, 6172)]