19418870

素因数分解:

$2^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{2141}}^1$

素因数の和:3055

約数の個数: 16

約数和(自身を含む): 35008848

約数和(自身を除く): 15589978

約数列:

[1, 2, 5, 10, 907, 1814, 2141, 4282, 4535, 9070, 10705, 21410, 1941887, 3883774, 9709435, 19418870]

約数ペア:

[(1, 19418870), (2, 9709435), (5, 3883774), (10, 1941887), (907, 21410), (1814, 10705), (2141, 9070), (4282, 4535)]