20902364

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5449}}^1$

素因数の和:5597

約数の個数: 24

約数和(自身を含む): 42117600

約数和(自身を除く): 21215236

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5449, 10898, 21796, 38143, 76286, 152572, 746513, 1493026, 2986052, 5225591, 10451182, 20902364]

約数ペア:

[(1, 20902364), (2, 10451182), (4, 5225591), (7, 2986052), (14, 1493026), (28, 746513), (137, 152572), (274, 76286), (548, 38143), (959, 21796), (1918, 10898), (3836, 5449)]