20928705345

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{15461}}^1$

素因数の和:15783

約数の個数: 64

約数和(自身を含む): 38355655680

約数和(自身を除く): 17426950335

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 271, 333, 555, 813, 999, 1355, 1665, 2439, 4065, 4995, 7317, 10027, 12195, 15461, 30081, 36585, 46383, 50135, 77305, 90243, 139149, 150405, 231915, 270729, 417447, 451215, 572057, 695745, 1353645, 1716171, 2087235, 2860285, 4189931, 5148513, 8580855, 12569793, 15445539, 20949655, 25742565, 37709379, 62848965, 77227695, 113128137, 155027447, 188546895, 465082341, 565640685, 775137235, 1395247023, 2325411705, 4185741069, 6976235115, 20928705345]

約数ペア:

[(1, 20928705345), (3, 6976235115), (5, 4185741069), (9, 2325411705), (15, 1395247023), (27, 775137235), (37, 565640685), (45, 465082341), (111, 188546895), (135, 155027447), (185, 113128137), (271, 77227695), (333, 62848965), (555, 37709379), (813, 25742565), (999, 20949655), (1355, 15445539), (1665, 12569793), (2439, 8580855), (4065, 5148513), (4995, 4189931), (7317, 2860285), (10027, 2087235), (12195, 1716171), (15461, 1353645), (30081, 695745), (36585, 572057), (46383, 451215), (50135, 417447), (77305, 270729), (90243, 231915), (139149, 150405)]