20901375

素因数分解:

$3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{563}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 42232320

約数和(自身を除く): 21330945

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 125, 135, 165, 225, 275, 297, 375, 495, 563, 675, 825, 1125, 1375, 1485, 1689, 2475, 2815, 3375, 4125, 5067, 6193, 7425, 8445, 12375, 14075, 15201, 18579, 25335, 30965, 37125, 42225, 55737, 70375, 76005, 92895, 126675, 154825, 167211, 211125, 278685, 380025, 464475, 633375, 774125, 836055, 1393425, 1900125, 2322375, 4180275, 6967125, 20901375]

約数ペア:

[(1, 20901375), (3, 6967125), (5, 4180275), (9, 2322375), (11, 1900125), (15, 1393425), (25, 836055), (27, 774125), (33, 633375), (45, 464475), (55, 380025), (75, 278685), (99, 211125), (125, 167211), (135, 154825), (165, 126675), (225, 92895), (275, 76005), (297, 70375), (375, 55737), (495, 42225), (563, 37125), (675, 30965), (825, 25335), (1125, 18579), (1375, 15201), (1485, 14075), (1689, 12375), (2475, 8445), (2815, 7425), (3375, 6193), (4125, 5067)]