21479409

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{929}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 35592960

約数和(自身を除く): 14113551

約数列:

[1, 3, 7, 9, 21, 63, 367, 929, 1101, 2569, 2787, 3303, 6503, 7707, 8361, 19509, 23121, 58527, 340943, 1022829, 2386601, 3068487, 7159803, 21479409]

約数ペア:

[(1, 21479409), (3, 7159803), (7, 3068487), (9, 2386601), (21, 1022829), (63, 340943), (367, 58527), (929, 23121), (1101, 19509), (2569, 8361), (2787, 7707), (3303, 6503)]