21293019

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5813}}^1$

素因数の和:5867

約数の個数: 24

約数和(自身を含む): 34465392

約数和(自身を除く): 13172373

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5813, 17439, 52317, 63943, 191829, 215081, 575487, 645243, 1935729, 2365891, 7097673, 21293019]

約数ペア:

[(1, 21293019), (3, 7097673), (9, 2365891), (11, 1935729), (33, 645243), (37, 575487), (99, 215081), (111, 191829), (333, 63943), (407, 52317), (1221, 17439), (3663, 5813)]