21084537

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 31207680

約数和(自身を除く): 10123143

約数列:

[1, 3, 23, 29, 41, 69, 87, 123, 257, 667, 771, 943, 1189, 2001, 2829, 3567, 5911, 7453, 10537, 17733, 22359, 27347, 31611, 82041, 171419, 242351, 305573, 514257, 727053, 916719, 7028179, 21084537]

約数ペア:

[(1, 21084537), (3, 7028179), (23, 916719), (29, 727053), (41, 514257), (69, 305573), (87, 242351), (123, 171419), (257, 82041), (667, 31611), (771, 27347), (943, 22359), (1189, 17733), (2001, 10537), (2829, 7453), (3567, 5911)]