21870695

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56807}}^1$

素因数の和:56830

約数の個数: 16

約数和(自身を含む): 32721408

約数和(自身を除く): 10850713

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 56807, 284035, 397649, 624877, 1988245, 3124385, 4374139, 21870695]

約数ペア:

[(1, 21870695), (5, 4374139), (7, 3124385), (11, 1988245), (35, 624877), (55, 397649), (77, 284035), (385, 56807)]