21158337

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 30028320

約数和(自身を除く): 8869983

約数列:

[1, 3, 31, 41, 93, 123, 179, 537, 961, 1271, 2883, 3813, 5549, 7339, 16647, 22017, 39401, 118203, 172019, 227509, 516057, 682527, 7052779, 21158337]

約数ペア:

[(1, 21158337), (3, 7052779), (31, 682527), (41, 516057), (93, 227509), (123, 172019), (179, 118203), (537, 39401), (961, 22017), (1271, 16647), (2883, 7339), (3813, 5549)]