20949729

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 31135104

約数和(自身を除く): 10185375

約数列:

[1, 3, 17, 41, 43, 51, 123, 129, 233, 697, 699, 731, 1763, 2091, 2193, 3961, 5289, 9553, 10019, 11883, 28659, 29971, 30057, 89913, 162401, 170323, 410779, 487203, 510969, 1232337, 6983243, 20949729]

約数ペア:

[(1, 20949729), (3, 6983243), (17, 1232337), (41, 510969), (43, 487203), (51, 410779), (123, 170323), (129, 162401), (233, 89913), (697, 30057), (699, 29971), (731, 28659), (1763, 11883), (2091, 10019), (2193, 9553), (3961, 5289)]