21481295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 8323249

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 293, 341, 473, 1333, 1465, 1705, 2365, 3223, 6665, 9083, 12599, 14663, 16115, 45415, 62995, 73315, 99913, 138589, 390569, 499565, 692945, 1952845, 4296259, 21481295]

約数ペア:

[(1, 21481295), (5, 4296259), (11, 1952845), (31, 692945), (43, 499565), (55, 390569), (155, 138589), (215, 99913), (293, 73315), (341, 62995), (473, 45415), (1333, 16115), (1465, 14663), (1705, 12599), (2365, 9083), (3223, 6665)]