21053241

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1951}}^1$

素因数の和:2077

約数の個数: 24

約数和(自身を含む): 33496320

約数和(自身を除く): 12443079

約数列:

[1, 3, 9, 11, 33, 99, 109, 327, 981, 1199, 1951, 3597, 5853, 10791, 17559, 21461, 64383, 193149, 212659, 637977, 1913931, 2339249, 7017747, 21053241]

約数ペア:

[(1, 21053241), (3, 7017747), (9, 2339249), (11, 1913931), (33, 637977), (99, 212659), (109, 193149), (327, 64383), (981, 21461), (1199, 17559), (1951, 10791), (3597, 5853)]