21120347138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{329789}}^1$

素因数の和:329914

約数の個数: 32

約数和(自身を含む): 35902258560

約数和(自身を除く): 14781911422

約数列:

[1, 2, 11, 22, 41, 71, 82, 142, 451, 781, 902, 1562, 2911, 5822, 32021, 64042, 329789, 659578, 3627679, 7255358, 13521349, 23415019, 27042698, 46830038, 148734839, 257565209, 297469678, 515130418, 960015779, 1920031558, 10560173569, 21120347138]

約数ペア:

[(1, 21120347138), (2, 10560173569), (11, 1920031558), (22, 960015779), (41, 515130418), (71, 297469678), (82, 257565209), (142, 148734839), (451, 46830038), (781, 27042698), (902, 23415019), (1562, 13521349), (2911, 7255358), (5822, 3627679), (32021, 659578), (64042, 329789)]