21231350805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{27779}}^1$

素因数の和:28074

約数の個数: 64

約数和(自身を含む): 40323225600

約数和(自身を除く): 19091874795

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 251, 435, 609, 753, 1015, 1255, 1757, 3045, 3765, 5271, 7279, 8785, 21837, 26355, 27779, 36395, 50953, 83337, 109185, 138895, 152859, 194453, 254765, 416685, 583359, 764295, 805591, 972265, 2416773, 2916795, 4027955, 5639137, 6972529, 12083865, 16917411, 20917587, 28195685, 34862645, 48807703, 84587055, 104587935, 146423109, 202203341, 244038515, 606610023, 732115545, 1011016705, 1415423387, 3033050115, 4246270161, 7077116935, 21231350805]

約数ペア:

[(1, 21231350805), (3, 7077116935), (5, 4246270161), (7, 3033050115), (15, 1415423387), (21, 1011016705), (29, 732115545), (35, 606610023), (87, 244038515), (105, 202203341), (145, 146423109), (203, 104587935), (251, 84587055), (435, 48807703), (609, 34862645), (753, 28195685), (1015, 20917587), (1255, 16917411), (1757, 12083865), (3045, 6972529), (3765, 5639137), (5271, 4027955), (7279, 2916795), (8785, 2416773), (21837, 972265), (26355, 805591), (27779, 764295), (36395, 583359), (50953, 416685), (83337, 254765), (109185, 194453), (138895, 152859)]