21261156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253109}}^1$

素因数の和:253123

約数の個数: 24

約数和(自身を含む): 56696640

約数和(自身を除く): 35435484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253109, 506218, 759327, 1012436, 1518654, 1771763, 3037308, 3543526, 5315289, 7087052, 10630578, 21261156]

約数ペア:

[(1, 21261156), (2, 10630578), (3, 7087052), (4, 5315289), (6, 3543526), (7, 3037308), (12, 1771763), (14, 1518654), (21, 1012436), (28, 759327), (42, 506218), (84, 253109)]