21256908

素因数分解:

$2^2\times 3^1\times {\mathrm{1231}}^1\times {\mathrm{1439}}^1$

素因数の和:2677

約数の個数: 24

約数和(自身を含む): 49674240

約数和(自身を除く): 28417332

約数列:

[1, 2, 3, 4, 6, 12, 1231, 1439, 2462, 2878, 3693, 4317, 4924, 5756, 7386, 8634, 14772, 17268, 1771409, 3542818, 5314227, 7085636, 10628454, 21256908]

約数ペア:

[(1, 21256908), (2, 10628454), (3, 7085636), (4, 5314227), (6, 3542818), (12, 1771409), (1231, 17268), (1439, 14772), (2462, 8634), (2878, 7386), (3693, 5756), (4317, 4924)]