20972783805

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{187349}}^1$

素因数の和:187813

約数の個数: 32

約数和(自身を含む): 35611488000

約数和(自身を除く): 14638704195

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 439, 1317, 2195, 6585, 7463, 22389, 37315, 111945, 187349, 562047, 936745, 2810235, 3184933, 9554799, 15924665, 47773995, 82246211, 246738633, 411231055, 1233693165, 1398185587, 4194556761, 6990927935, 20972783805]

約数ペア:

[(1, 20972783805), (3, 6990927935), (5, 4194556761), (15, 1398185587), (17, 1233693165), (51, 411231055), (85, 246738633), (255, 82246211), (439, 47773995), (1317, 15924665), (2195, 9554799), (6585, 3184933), (7463, 2810235), (22389, 936745), (37315, 562047), (111945, 187349)]