21378688

素因数分解:

$2^7\times {\mathrm{167021}}^1$

素因数の和:167035

約数の個数: 16

約数和(自身を含む): 42590610

約数和(自身を除く): 21211922

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167021, 334042, 668084, 1336168, 2672336, 5344672, 10689344, 21378688]

約数ペア:

[(1, 21378688), (2, 10689344), (4, 5344672), (8, 2672336), (16, 1336168), (32, 668084), (64, 334042), (128, 167021)]