20727141

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 30205440

約数和(自身を除く): 9478299

約数列:

[1, 3, 29, 37, 47, 87, 111, 137, 141, 411, 1073, 1363, 1739, 3219, 3973, 4089, 5069, 5217, 6439, 11919, 15207, 19317, 50431, 147001, 151293, 186731, 238243, 441003, 560193, 714729, 6909047, 20727141]

約数ペア:

[(1, 20727141), (3, 6909047), (29, 714729), (37, 560193), (47, 441003), (87, 238243), (111, 186731), (137, 151293), (141, 147001), (411, 50431), (1073, 19317), (1363, 15207), (1739, 11919), (3219, 6439), (3973, 5217), (4089, 5069)]